Isekai world (ultimate anime crossover)

A giant island with several sections, dangerous swamps with ferocious and poisonous creatures, immense forests, jungles full of life, dinosaurs and prehistoric creatures

Beaches and jungles: located in the lower parts of the map, these are areas where there are mostly herbivorous and passive dinosaurs, as well as some neutral ones.

Swamps: Located in the corner of the map, these are dangerous and deadly places if you've just arrived at the Arks. It's very likely you'll die here and be transported back to the world or science base that brought you to the Ark.

Red wood: It's basically a death sentence, colossal redwoods that harbor predators and the ground is teeming with apex predators. This area is located in the center of the map.

Volcano: Located in the upper right of the map, a giant volcano containing the overseer's cave, a wisdom machine that grants almost infinite knowledge.

Snow: a frozen and dangerous biome located in the upper right part of the map, a very unforgiving place where even the largest and strongest can die at the hands of the smallest and most agile.

The Arks, or arks, are gigantic orbs, almost as large as planet Earth, orbiting around this world. They are connected to it. There are several different Arks, but what's interesting about them is that dinosaurs live there—yes, dinosaurs, those prehistoric creatures. These Arks have existed for over 18 million years. It's unknown who created them or if they simply appeared here. All that is known is that people who have entered and returned describe these places as wonderfully beautiful. So much primitive life is beautiful to see. But there are some Arks that have creatures that aren't even dinosaurs or prehistoric creatures.

A special technology has also been invented, the result of extensive study of these Arks. These are implants that explorers place on their wrists, allowing for a very spacious inventory and enabling them to connect with the implants of the creatures living on the Arks. It was discovered that these creatures can be domesticated; they simply need to be sedated and fed meat or vegetables, depending on whether they are carnivores or herbivores. Certain creatures can also be fed peacefully; in other words, we are passive.

Another thing is that it seems as if Ark itself creates the dinosaurs; it's as if it makes them appear out of nowhere. That was very curious and is still being investigated.

Shin Godzilla: This version appears more malnourished, but is no less dangerous. Its atomic breath is thinner but also more deadly, capable of cutting through the skin of other Godzillas. It can also fire atomic beams from the tip of its tail and from its dorsal plates.

Godzilla minus one: It is a smaller Godzilla but with a devastating atomic breath that, upon completion, creates a huge explosion similar to an atomic bomb; it is also faster but somewhat less physically strong

Godzilla Aquatilus: This Godzilla closely resembles a Basilosaurus but is more grotesque and larger, with membrane-bound fins. Its atomic breath is unique; it's an immense heat wave that ignites the water so intensely that everything within a 564-kilometer radius is left dead, boiled, and ready to be devoured by this creature or any other that might appear later.

The elite guards of Firdondia are warriors trained to eliminate any opponent that crosses their path, but in particular, there are 4 elites who are the most important.

Kuro: the elite of the "magma phoenix" division, is a warrior trained to use highly advanced vision haki and Soru to defend the Kingdom, he also knows magma magic and rock magic

Kinazu: the elite of the "Thunder Star" division, the most laid-back elite of them all, but also one of the most dangerous. He knows how to use Armament Haki perfectly, is incredibly fast, and even more so thanks to being a user of the Pika Pika no Mi, capable of traveling at the speed of light and launching devastating beams of light that pulverize his enemies.

Kakiros: He is the most serious and cold of the elite warriors, fulfilling all orders, even killing his opponent coldly and without remorse. He knows how to use ice magic and Armament Haki.

And last but not least

Quionki: the most important elite warrior for the kings, as he is in charge of taking care of Princess Celestia, he knows how to use 2 types of Haki, visual and armament Haki, he is also a user of the Gasu Gasu no Mi fruit, he is very good at putting his opponents to sleep or drugging them with drugs that he generates from his own body

Mothra: there are currently only 5 specimens in the entire world, they live up to 3,000 years, they are giant moths capable of emitting a healing glow and are usually allies of Godzillas

Batrhas: These are the male version of the Motrhas; they are more robust and have small spikes all over their bodies, and are darker and duller in color.

Shimu: These are giant quadrupedal lizards with ice spikes covering much of their bodies. They typically stand on all fours and can breathe ice that instantly freezes everything, reaching temperatures as low as -569 degrees Celsius. There are 1.5k specimens worldwide, and they can live up to 684 years.

Mutts: They have long bodies, excessively long arms (four in total), and six short legs. They feed on the world's radiation; they are one of only two species that do this. They have red lines on the sides of their bodies, bright red eyes, and the females are larger than the males and have insect-like wings. Males measure 305 meters, and females measure 506 meters.

Godzilla (Legendary Godzilla): the ultimate creature, although not the only one, there are several subspecies of this same one, this one has a straight and quite strong atomic breath, they also have an enhanced pink glow form

Kaiju are giant creatures, titans to be more specific, creatures that have powers or are simply too strong

Karkinos: there are currently 5,000 to 6,000 specimens of this species; they are giant Japanese crabs that reach up to 287 meters in length. They also have octopus-like tentacles that they use to capture prey, and they can live up to 4,000 years.

Mortalwing: there are currently about 3,000 to 3,500 specimens worldwide. They are giant pterosaurs with long, pointed, feathered tails. They have fangs that protrude from their beaks and a crest on their heads for aerodynamics. They have scales around their eyes, on their membranes, and on their chests to better withstand enemy attacks. They can live up to 2,500 years and can measure up to 407 meters.

Drilopos: there are currently about 7,000 specimens. They are giant moles with very sharp, spiky claws and small mounds of earth on their backs that resemble mountains. Unlike normal moles, these are not blind. Their front legs are quite robust and strong but somewhat short, their hind legs are short, and their fur extends to cover their entire rear end. They can reach up to 200 meters in length, but including the mounds of earth, they can measure up to 210 to 214 meters.

King Kongs: They are basically giant gorillas, measuring up to 164 meters tall, and there aren't many left. So far, there are only 205 specimens, and they can live up to 100 years, no more.

Behemoths: They have the build of a gorilla, there are currently 7.5k specimens, they live up to 934 years, they have elephant tusks that reach the ground, their legs are very short and their arms are extra long to be able to move around

Just like in the world of One Piece, there is a World Government here, but unlike the one in One Piece, this is not a corrupt government and it helps whenever it can or intervenes in wars if they start to affect other countries or kingdoms.

World Government Building: On a huge island stands the World Government building, a massive structure housing servants, butlers, and the navy. Here reside the five Elders, the highest-ranking officials of the government.

The five elders—Marcus, Ryuku, Juper, Litrios, and Konshidor—are the highest authority in the government. Although they cannot intervene directly in conflicts and wars, the government created the navy. The five elders drew up the plans and determined how the navy would operate under their command.

The Navy: Here's how it works: Marines are newly recruited, novice Marines who must be trained by their superiors; Captains are in charge of training and supervising the Marines; Vice Admirals are stronger and more powerful than Marines and Captains, and they are in charge of rescue missions; and finally, there are the Admirals, the superior and strongest, who are in charge of leading entire fleets of Marines that will intervene in wars that are already directly affecting other countries or kingdoms unrelated to those at war.

Marineford: the ultimate Marine fortress. The front houses the Marines' most important bases, while the rear provides a safe and peaceful environment for the families of the Marines.

This world is obviously like planet Earth but three times the size of Jupiter. The world is immense for a reason: the enormous number of species, races, subraces, titan species, Kaiju, artifacts, Devil Fruits, powers, kingdoms, islands, continents, and the long etcetera of other things that exist.

In this world there are more than 21,698 large islands and 12,456 "small" islands; they are tropical islands, volcanic islands, aerial islands, some others have extremely advanced technology, and many others are giant gardens with prehistoric creatures.

There are thousands of kingdoms and empires in this world, some of which are at war and have problems, while others are doing quite well.

This kingdom is located underwater, and the only way to reach it, if you're not a fish-man, mermaid, or merman, is to use special bubbles generated on the three islands surrounding the vortex. These islands are small, but people still live on them.

Neptune: The king of these islands, Neptune, a giant merman over 12 meters tall with the power to manipulate water with his golden trident, also has his wife and daughter, his enormous daughter. He is the king of the entire sea and commander of the fleet of fish-man and merman warriors.

Otoxime: She is King Neptune's wife, a 1.85-meter-tall blonde mermaid who had a daughter with him. She is a kind woman who prevents King Neptune from making mistakes or doing horrible things like executing innocent people. She also usually welcomes other races who arrive on these islands. Obviously, she is the queen.

Shiragoshi: She is the daughter of Neptune and Otoxime. She is almost the same height as her father, standing at 8 meters. Her hair is pink. When she was first born, she was the size of a normal baby, but she gradually grew to her father's size until she became a very affectionate young woman. However, she is also very shy and timid, and she cries quite a lot.

Inhabitants: This underwater island is home to fish-men, mermaids, and mermen—generally, people who are part fish.

Noah's Ship: Noah's Ark, that biblical ship that in real life is completely lost, here is found at the bottom of the ocean, right under the Fishman Islands, that is, Atlantis, but this ship has a very special magic, one that creates a huge oxygen bubble around the islands so that visitors can spend time here without the need to use magic that wastes their energy.

The inhabitants of this kingdom are orcs, ruthless and bloodthirsty beings who are warriors by nature. Their queen is a thousand times colder and more ruthless than her subjects, although she is often very loving and affectionate with one specific person. This kingdom is located on an extremely cold mountain, but the orcs withstand it perfectly.

Darka: Darka is the queen of the orc kingdom, a rather muscular and rugged woman. She is extremely strong and brusque, as well as being very rude, cold, and threatening to her subjects. But secretly, she is a shy, loving, affectionate, and caring girl with her husband, a human. She only shows this warm personality to him, and she will do anything he asks. Darka is also the user of the Hie Hie no Mi, which is another reason why she is so feared. She can freeze you and leave you to die there without you being able to do anything.

Luk: At first, he was a human adventurer sent to eliminate Darka—a mercenary adventurer, to be specific. But one thing led to another. Luk fell unconscious, and when he awoke, he had an engagement ring. Darka had forced him to marry her, but after a while, he got used to it and is now quite happy with Darka.

Buildings: The houses and the castle are made of ukuza stone, a warm thermal stone that allows one to live in extremely cold places for an indefinite period of time.

This kingdom thrives on hunting large animals and monsters for their meat. It's a highly aggressive kingdom, hated by several other kingdoms. They are the greatest weapons manufacturers and slavers of all.

Here, peace and agriculture are the norm; the semi-humans are not aggressive but can become so if provoked, although in general they are peaceful and friendly.

Matriarch: The matriarch is a tiger-like demi-human named Felicia. She is the mother of all demi-humans and her husband is an ultra-human, meaning he has no defined race. Therefore, his offspring can have the characteristics of a tiger, a bear, or any mammal. However, this husband is submissive and obedient to the matriarch. His sole purpose is to love her and bear her children whenever she desires. The matriarch is fierce and protective of her subjects, who are also her daughters.

Matriarch's husband: He is an ultra-race, physically unremarkable, but his offspring can have the traits of any mammal. He is quite submissive and obedient to the matriarch, only there to love her and give her more children when she asks him to.

Yumojigas: this is the name given to the inhabitants of this enormous tribe, which, due to its size, is considered a kingdom. They are humans with features of any mammalian animal; these features include tails, ears, fur color patterns on their skin, claws, and even fangs.

Agriculture: They usually plant exotic plants and fruits that only grow in the jungle where this enormous tribe lives. Fruits that are extinct in that jungle, and therefore in the tribe, are extremely delicious.

Trade: This kingdom usually trades with the human kingdom; well, it's the kingdom it trades with, since over 200 years ago the human kingdom saved the Kingdom of the Demi-Humans, so this kingdom is eternally indebted to the human kingdom.

This is the kingdom where humans live, where they coexist, and where other races occasionally arrive to trade. This kingdom is located in the central part of the upper continent and currently has no enemy kingdoms, so peace is the norm here.

King: The king of Firdondia is a kind and just man. His name is Dilco, and like every king, he has a wife and two children, a boy and a girl. He always finds the most logical and least violent solution, but he does resort to violence when necessary. However, in general, all is peaceful with this king.

Queen Elyria, the queen of Firdondia and wife of King Dilco, is usually more serious and strict than her husband with her subjects and commoners, but with her family she is warmer and more loving, as a mother should be. She can also be affectionate and warm with the partner of one of her children (that boyfriend/girlfriend can become {{user}} if their relationship with the princess or prince develops well). She is also usually the one who makes the most difficult decisions, unlike her husband.

Prince and Princess: Prince John and Princess Celestia are the children of King Dilco and Queen Elyria, and therefore heirs to the throne. The prince is usually more carefree and less serious, but the princess is more serious and concerned than her brother. However, this is just a facade, as the princess is actually a loving and affectionate person. She maintains this cold and strict facade on her mother's orders, but she can reveal her true personality to the {{user}} if they develop a good relationship with her.

Elite: The elite knights of Firdondia are commanded by Xelix the fierce commander and his more than 27 soldiers, so strong and agile that they can fight other races like orcs or ogres, and with their superior intelligence, they can even defeat giants.

This is all the human kingdom; it is mostly peaceful, but it is also a powerful kingdom since they are the ones who have the most knowledge about magic of various kinds.

Beast humans: they are animals of all kinds but anthropomorphic; there are all kinds: dogs, cats, bears, dragons, foxes, and every kind of mammal and reptile that exists.

Draconians: They are different from beastmen, but are more closely related to demi-humans since they are enormous humans; the largest adults usually measure up to 5.68 meters and with luck reach 6.05 meters. They have scales only on their arms and legs, a scaly tail, horns, wings, and claws, and they can also breathe fire.

Small Titans: This term is often used to refer to Titans that are defective in terms of size; the largest ones barely exceed half the size of Mount Everest, but this doesn't make them weaker. Some are even stronger and more agile than normal Titans.

Tetramants: They are humanoids up to 2 to 3 meters tall. No matter what happens, they will always be very muscular and robust. They have 4 arms, and the females are usually the strongest.

Humans: obviously there are humans in this world, they're never lacking in an isekai.

Onis: Demons over 3 meters tall with quite sharp horns and shiny fangs, they are very robust and muscular, they are among the few demons that do not have a tail of any kind

In addition to the other breeds already mentioned, there are also these others:

Titans: They are much larger than giants; young adults reached a size similar to or greater than Mount Everest. They are very strong, although few remain on Earth and they prefer to stay hidden in remote and almost unexplored places.

Demons: evil beings in general, but there are also Succubi and Incubi, demons of the sin of lust; they come in different colors, sizes, shapes, and deformities.

Angels: They are beings of kindness who seek to help people; they have wings on their backs that allow them to fly and a halo around their heads.

Crystolars: They are humanoids made of black and purple crystals; they are ultra-resistant but very weak to very loud and high-pitched sounds.

Semi-Humans: These are humans with animal features such as tails, ears, musculature, teeth, and even claws from various animals.

Harpies: women with bird wings instead of arms but with human hands, tail feathers and some feathers on their body and others that replace a small part of their hair; these can be of any type of bird, whether flying or not, and no, they do not have a beak

Dwarves: expert blacksmiths, short in stature but with great strength to forge weapons and armor of all kinds, and the wisest, oldest and most experienced can manipulate any material

Criolillas: beings with 4 wings on their backs that they use as a hood when not using them to fly, they live on the coldest and most frozen peaks in the world, but they also migrate to warm places when they are going to have their young since these need 2 weeks to be immune to the extreme cold

Shadowlings: beings made of shadow, they are obviously humanoids, the vast majority are evil but there are a few who only seek to be liked and loved

In this world there are some islands from the One Piece series, which are the following:

Wano: a fairly large island where people live in peace and it boasts beautiful landscapes. Its capital, the flower capital, is a place with breathtaking cherry blossoms. It's also surrounded by waterfalls, caves, and tunnels, but getting there isn't easy. You'll have to cross a very, very rough sea, but the visual reward for arriving will be well worth it.

Punk hazard: Half of the island is completely frozen, but has a functioning science building, while the other half of the island is on fire and has lava lakes and small, active, and dangerous volcanoes.

Dressrosa: a kingdom with two islands. Dressrosa itself, where the kingdom is located, has a tall, enormous tower in the center, and on its flat top is the castle where the royalty lives. Below, the commoners live. In general, life on this island is very beautiful. The other island is known as the Great Garden, a place with plants of all types and sizes, including extinct plants and the occasional prehistoric insect.

Alabasta: It is a giant desert, and in the central part is located the kingdom of the same name as the island. There, the Nefertari family lives in their palace, taking care of their people so that they do not die or there is no civil war.

Numa Numa No Mi: The user becomes a being of mud, able to create and control mud. They are intangible to all types of physical attacks and can only be struck with Haki.

Mera Mera no Mi: The user becomes a being of fire capable of creating and manipulating fire. The user is immune to physical attacks and can only be attacked with Haki.

Maku Maku No Mi: The user becomes a being of smoke, capable of generating and controlling smoke. The user is immune to physical attacks; they can only be hit if the attack is imbued with Haki.

Goro Goro no Mi: Allows the user to generate lightning and thunder from their body and control electricity, capable of generating lightning up to 200,000,000 volts. The user is immune to physical attacks and lacks Haki.

Yami Yami no Mi: This fruit allows the user to use darkness to their advantage. They can absorb powerful attacks, and if in complete darkness, they can steal the Devil Fruit from another recently deceased user.

Hie Hie No Mi: transforms the user into an ice being, capable of generating and controlling ice; the user cannot be hit by attacks without Haki.

Magu Magu no Mi: Allows the user to transform into a being of magma, capable of generating and controlling magma to their advantage; the user is unaffected by physical attacks without Haki.

Pika Pika No Mi: Allows the user to transform into a being of light, capable of traveling at the speed of light and shooting devastating beams of light.

Gasu Gasu No Mi: This fruit allows the user to become a gas being, capable of generating and controlling all kinds of gases. It is more recommended for scientists.

Suna Suba no Mi: transforms the user into a being of sand, capable of generating and controlling it

(Generally, all Logia fruit users are immune to punches, swords, or bullets, but Haki can affect them. They can also be affected by attacks from other Logia Devil Fruit users, even without Haki.)

Ushi Ushi No Mi Bison Model: allows the user to transform into a bison

Ushi Ushi No Mi Model Giraffe: Allows the user to transform into a giraffe

Hito Hito No Mi: This fruit only works if the consumer is an animal, as it grants them the ability to speak and change into a form that more closely resembles a human.

Tori Tori no Mi Model Falcon: Allows the user to transform into a falcon

Tori Toru No Mi Model Albatross: Allows the user to transform into an albatross

Inu Inu No Mi Jackal model: allows the user to transform into a jackal

Inu Inu No Mi Model Wolf: allows the user to transform into a wolf

Neko Neko No Mi Leopard Model: Allows the user to transform into a leopard

Hebi Hebi No Mi Anaconda Model: Allows the user to transform into an anaconda

Hebi Hebi No Mi Royal Cobra Model: Allows the user to transform into a royal cobra

Sara Sara No Mi model axolotl: allows the user to transform into an axolotl

Zou Zou No Mi: allows the user to transform into an elephant

Mogu Mogu No Mi: allows the user to transform into a mole

(All Zoan fruits have a hybrid form, that is, a combination of the user's race and the fruit's animal species.)

Ryu Ryu No Mi Model Alosaurus: Allows the user to transform into a dark green alosaurus

Zou Zou No Mi Model Mammoth: Allows the user to transform into a brown mammoth with curved tusks, excellent for charging.

Ryu Ryu No Mi Spinosaurus Model: allows the user to transform into a spinosaurus

Ryu Ryu No My petranodon model: allows the user to transform into a pterosaur

Ryu Ryu No My Brachiosaurus Model: Allows the user to transform into a Brachiosaurus

Ryu Ryu No My Pachycephalosaurus Model: Allows the user to transform into a pachycephalosaurus

Kumo Kumo No Mi Model Rosamygale Grauvogeli: allows the user to transform into a giant prehistoric spider

Ryu Ryu No Mi Triceratops Model: Allows the user to transform into a triceratops

Neko Neko No Mi Model Saber-Toothed Tiger: Allows the user to transform into a saber-toothed tiger

Ryu Ryu No My Ankylosaurus Model: Allows the user to transform into an Ankylosaurus

Ryu Ryu No Mi Model Quetzalcoatlus: Allows the user to transform into a Quetzalcoatlus

Ryu Ryu no mi Titanosaur model: allows the user to transform into a Titanosaur

(All these fruits have a hybrid form, meaning the user can use this form which is a combination of their human form and the animal transformation of their fruit)

Hito Hito No Mi Model Nika: This is the Gomu Gomu no Mi but in its true form and transforms into the sun god Nika (i.e., Gear 5), capable of manipulating the environment and turning it into rubber no matter how solid the terrain is

Hito Hito No Mi model Daibutsu: allows the user to transform into the golden statue of Buddha, becoming gigantic and very powerful

Hebi Hebi No Mi Model Yamata No Orochi: allows the user to transform into a giant 8-headed snake, something like a hydra

Uo Uo No Mi Model Seiryu: Allows the user to transform into a blue oriental dragon with elemental powers and the ability to generate clouds to make anything float.

Tori Tori No Mi Model Phoenix: Allows the user to transform into a Phoenix of light blue and yellow flames; these flames can heal wounds and regenerate the user or another person if the user comes into contact with that person.

Inu Inu No Mi Model Kyubi: allows the user to transform into the mythical 9-tailed fox, the Kyubi, but can also take the appearance of anyone with whom they have had physical contact

Inu Inu No Mi Model Okuchi Ni Makami: allows the user to transform into the mythical wolf Okuchi, granting them enormous speed and the ability to generate ice at will

Hito Hito No Mi Model Onyudo: Allows the user to transform into an Onyudo, a gigantic guardian Yokai monk

Uma Uma No Mi Model Pegasus: allows the user to transform into a pegasus, that is, a winged horse

(All these fruits, except the Hito Hito no Mi Model Nika and the Hito Hito no Mi Model Daibutsu, have a hybrid form, that is, a combination between the appearance of the user's race and the species/animal of the fruit)

Toki Toki No Mi: allows the user to travel only to the future but cannot return to the past; it can also send other people to the future simply by touching them.

Ton Ton No Mi: allows the user to change their weight at will, from 0 tons to 15,000 tons.

Doku Doku No Mi: allows the user to transform their body into poison and also create poison, but the user develops a strange taste for eating or drinking poison which causes stomach problems, but the user is immune to the poison

Toge Toge No Mi: Allows the user to create very sharp spikes on their body to use defensively and offensively at the same time

Hana Hana No Mi: allows the user to generate copies of their arms on themselves or any other person or surface

Horo Horo No Mi: The user can summon small ghosts that, upon passing through an enemy, leave them with a terrible depression and a loss of will to live.

Suke Suke No Mi: allows the user to become invisible and can also make small things they hold in their hands invisible.

Hobi Hobi No Mi: When the user touches a person, that person becomes a toy at the user's command and is forgotten by everyone else.

Zushi Zushi No Mi: It allows the user to control gravity, increasing and decreasing it, and can also bring meteorites from space to strike their opponent.

Jiki Jiki No Mi: allows the user to generate magnetic beams from their body to manipulate metal and create weapons, metal limbs, and giant suits made of this same metal or scrap metal.

Doru Doru No Mi: Allows the user to generate wax infinitely and harden it instantly; it is also capable of creating copies of themselves with this wax

Kage Kage no Mi: This fruit allows the user to control and generate shadows. They can also remove someone's shadow, causing that person to die almost instantly upon contact with sunlight. However, they can use these shadows to become stronger or use them on corpses to give them life, regardless of the corpse's size, strength, or weakness. The reanimated corpse will gain the strength of the shadow based on the original person's strength.

Bomu Bomu no Mi: This fruit allows the user to explode any part of their body, including their breath, snot, and basically anything inside them. However, the user does not die; the explosion only affects whoever is hit by it.

Kira Kira No Mi: allows the user to literally turn their skin into diamond, making it extremely hard and resistant

Gomu Gomu No Mi: The user becomes a rubber being, able to stretch long distances and much more if the user trains the power of this fruit; the user also becomes immune to electricity

Awa Awa No Mi: allows the user to generate unlimited foam and bubbles, but can also cleanse enemies with these same bubbles, leaving them so slippery that they slip all the time and cannot grab things without dropping them.

Fude Fude No Mi: When the user draws something, the drawing comes to life and is completely under the user's control; this function works best if the user is an extraordinary painter.

Bari Bari No Mi: allows the user to create indestructible transparent barriers, but they consume a lot of energy and have a limited number of them, or a limited size.

Wara Wara No Mi: allows the user to create hay/straw to make anything, even making Budu dolls of someone they know or have had contact with

Kobu Kobu No Mi: When the user waves a flag, everyone who looks at that flag automatically becomes an ally of the user.

Mane Mane No Mi: allows the user to take on the appearance of anyone with whom they have had any kind of physical contact, whether slight or not.

Doa Doa No Mi: It allows the user to generate doors in anything; these doors take them to their own pocket dimension where they can rest. They can also leave the dimension to go anywhere nearby.

Mero Mero No Mi: This Devil Fruit is best suited for women, because if the user is extremely attractive or sexy, they can generate heart-shaped arrows that, upon hitting someone who has seen the user, will immediately turn them to stone.

Bisu Bisu No Mi: By clapping, the user creates all kinds of cookies, which can be soft or hard, and can also create warriors from these same cookies.

Mochi Mochi no Mi: This fruit is a special Paramecia type, as it allows the user to transform their body into mochi. However, if used correctly, it can be very lethal and useful in fights.

But But No Mi: It allows the user to generate candy to harden themselves or their opponent, but they can also create things with that candy which is also very resistant and very difficult to break without Haki

Supa Supa No Mi: allows the user to modify their limbs to make them blades, literally

Gura Gura no Mi: It is a fruit of total destruction, allowing the user to create earthquakes, tsunamis, tidal waves, and all kinds of seismic events. It can also affect the air and deliver blows so powerful they could kill giants in armor made of the hardest steel. It is a fruit that, in the wrong hands, could cause the destruction of the world as we know it.

Yomi Yomi no Mi: This fruit allows its user to revive after one year. While the user is still in their first life, they are powerless, but when revived by the power of this fruit, they can use their soul to their advantage. It's like an enhanced version of the user, capable of passing through walls and striking their opponent with much greater force.

Soru Soru no Mi: This fruit allows the user to extract the soul of a person and give it to inanimate objects to bring them to life. The user can also use their own soul to create subjects who obey them without question. If the object or living thing that gains life from the fragment of the user's soul is imbued with life, that object will be stronger than any other.

Sube Sube no Mi: This fruit makes the user's skin slippery, so blows that reach the user of this fruit will slide off their skin and not harm them; they can only be harmed by cuts or bullets.

Buki Buki No Mi: allows the user to transform any part of their body into any weapon, pistol, bazooka, swords, cannons and a long etcetera of weapons

Nikyu Nikyu No Mi: The user develops paw pads like those of dogs and cats, but these pads/paws allow the user to compress and expel various objects, so with a single touch they can send you flying.

Ope Ope No Mi: It allows the user to create a room and do whatever they want within it. They can levitate things, cut things, teleport anywhere inside the room, manipulate whirlwinds, and create very strong electrical currents. They can also extract organs from themselves or others without risk, and can extract other things from bodies such as bullets, viruses, bacteria, and infections. In short, the perfect fruit for any doctor.

Ito Ito No Mi: A fruit that allows the user to create threads from their fingertips. While this ability isn't particularly useful on its own, if the user knows how to use it, they can generate exact clones of themselves with these threads, create a giant cage, or insert their threads into anyone and control them like a puppet. The threads are also sharp and can cut, which is very useful in combat.

Toshi Toshi no Mi: This fruit allows the user to alter their opponent's age with a single touch. It doesn't simply make them older; rather, by touching them, the user can age the enemy to any future they imagine. They can also do this to themselves, and can rejuvenate both themselves and their opponent. However, the user will retain their original age regardless of how much their appearance changes.

Bara Bara no Mi: This fruit allows the user to split themselves into parts, separating their body parts without any consequences. This also makes them immune to cuts; no matter how small the cut, they will return to their normal state without a scratch. However, blows and bullets will still harm the user.

Bane Bane No Mi: allows the user to transform any limb into a spring to use that momentum to their advantage for very strong blows or faster travel, and that's all it is, making their limbs into springs.

Haki types: Vision (allows the user to see people's aura/will and know where they are), Advanced Vision (also allows the user to see people's aura/will and know exactly where they are, but also allows the user to see time in the future: seconds, minutes, hours, days, weeks, or years, depending on the level of training), Armament Haki (allows the user to harden their body to strengthen their blows and also better resist enemy attacks; weapons can also be coated with Haki), Conqueror's Haki/King's Haki (allows the user to expand their will and crush wills weaker than their own)

Races: There are also the races of One Piece, that is... Minks (anthropomorphic animals of all kinds of mammals, born as natural fighters, capable of generating so much friction that their blows are electric), Giants (simply enormous people), Tontatas (they are like dwarves, but measure up to 15cm maximum, they are too fast and agile, they are almost impossible to see with normal vision), Fish-men (they are people with features of marine creatures such as sharks, fish, tropical fish, abyssal creatures etc.), Mermaids, Tritons, Skypieans (people who live on the sky islands, they are humans with angel wings but cannot fly for some reason), Longarms (they are humans but with arms twice as long), Longlegs (they are humans with legs twice as long and they specialize in fighting styles with kicks)

In this world, the worlds of the most famous anime (mostly Shonen) are here; there are artifacts, foods, powers, technology, species, races, classes, etc.

Things from anime: there are the races from One Piece, the Devil Fruits, Haki, swords, legends, but not the characters, because I think that would take away the fun, in my opinion. There are also several islands from One Piece, the cursed techniques from Jutsu Kaisen, and the breathing techniques from Demon Slayer. Likewise, there are the Titans from Attack on Titan, the magic from Black Clover and Re:Zero, but there are many more things to mention 😉