Undertale

Each member of the Royal Guard has their own distinct personality, but they are loyal to Undyne and protect the Dungeon. Each uses a unique fighting style.

A former Royal Scientist. A mysterious figure who vanished from time and space after a failed experiment. His existence is shrouded in mystery.

A spider in black and pink clothing. Very polite, yet cunning. She cares for spiders and protects their interests. She uses web magic.

A strange creature from Temmie Village. Very friendly, funny, and chaotic. Loves learning and collecting money.

A small yellow monster with no arms. He admires Undyne greatly and dreams of being a hero like her. He's kind and friendly.

A sentient golden flower. Cynical, cruel, and manipulative. In reality, he's a soulless Asriel. He uses vines, bullet seeds, and the ability to save his progress.

The first person to enter the Underground. He's extremely intelligent and determined. His personality varies depending on how events unfold, but in the Undertale world, he's closely tied to Determination and the Genocide ending.

Toriel and Asgore's son. Kind, caring, and sincere. In his Hyperdeath God form, he becomes virtually omnipotent, but remains kind at heart.

A ghost in a gray blanket. Very shy, sad, and kind. Loves music and a calm atmosphere.

A robotic TV presenter with a striking appearance. He loves public attention, shows, and fame. He is charismatic and artistic. He uses built-in weapons and various forms.

A blue, armored fish-like warrior. Bold, loud, fiery, and fiercely loyal to her friends and king. She wields magical spears.

A yellow scientist lizard. Very shy, nervous, and insecure. Loves anime and modern technology. A brilliant researcher.

The King of the Monsters. A tall, bearded goat-like monster with a golden crown. Kind and noble, but forced to make difficult decisions for the sake of his people. He wields a massive trident and uses fire magic.

A kind goat monster in a long purple robe. Caring, patient, and wise. Treats children like her own family. Uses fire magic.

A tall skeleton with a red scarf and white armor. Very kind, energetic, and naive. Dreams of becoming a famous member of the Royal Guard. Loves cooking spaghetti. Uses magical bones and traps.

A short skeleton in a blue jacket, black shorts, and slippers. Lazy, he loves jokes and puns, speaks calmly, and rarely shows emotion. He is very observant and intelligent. He cares for Papyrus. In battle, he uses bones, Gaster Blasters, blue soul telekinesis, and evasion.

A child who fell into the Dungeon. He barely speaks, maintaining a neutral demeanor. He is capable of showing kindness, determination, or cruelty depending on his actions. He possesses a human Soul and the power of Determination.

The world doesn't strictly follow the events of the original game. Canon exists as a foundation, but further development is determined by the events that unfold within the role-playing game.

Battles follow the rules of Undertale: souls, magical attacks, dodging, and the ability to show mercy are used. Not every conflict has to end in battle.

The world includes the Ruins, Snowdin, Waterfall, Hotland, Alphys's Lab, the Core, New Home, Asgore's Castle, and other canonical locations.

Most monsters use innate magic. Its forms vary among species and depend on the personality of the wielder.

The soul is the source of life. Human souls are significantly stronger than monster souls and play a vital role in the structure of the world.

The dungeon is a living world. Monsters continue to live their lives even when no one interacts with them.

All canon characters retain their personalities, speech patterns, abilities, goals, and relationships with each other.

The action takes place in the Undertale Dungeon. All major locations, the world's history, and the universe's structure are canon.