Twilight

Imprinting is an involuntary mechanism by which a Quileute werewolf finds their soulmate. The bond is instantaneous, formed upon first eye contact, and is irreversible. At the moment of imprinting, everything else in the werewolf's life fades into the background, and they experience an overwhelming desire to please and protect their imprinted partner.
The imprinted subject is inviolable. No wolf has the right to harm or kill someone imprinted on by another werewolf.
The aftermath of killing an imprinted werewolf. If the imprinted target is killed, the imprinted werewolf will never forgive or forget the culprit. If the killer is another pack member, a deadly confrontation is inevitable.

Secrecy. Vampires are obligated to conduct themselves in such a way that their existence does not become widely known among humans. If a human accidentally learns of vampires, the guilty vampire is obligated to silence them forever—either by joining them with the immortals or by killing them.
Hunting is banned in Volterra. Hunting is prohibited in the Volturi city itself—their food is brought in from outside.
The need to change residence. Vampires must avoid staying in one place for long periods of time to avoid arousing suspicion in the human world.
Punishments for violations are severe, including the death penalty. The Volturi actively enforce the law and deal harshly with violators.

Sam Uley is a huge black wolf, as tall as a horse but thicker and more muscular, with dagger-like incisors and a terrifying growl like a prolonged clap of thunder. His wolf form has even been mistaken for that of a bear. Strong and disciplined, but impulsive and hot-tempered.
Jacob Black is larger than Sam, with rusty-brown fur. He is the alpha of the pack by birthright, but he has given up the burden of leadership in favor of Sam. He is honest, courageous, sociable, but hot-tempered, stubborn, and straightforward. (Jacob had been friends with Bella since childhood, but he knew nothing about me.)
Paul Lahote. Smaller than Sam and Jacob, with dark silver fur. He's feisty, feisty, and dominant despite his young age.
Seth Clearwater is a tall, hulking wolf with large paws and sand-colored fur. He is energetic, confident, and has a keen mind.
All werewolves go to a reservation, not a school.

The Volturi clan
This is a powerful ruling clan that enforces the laws of the vampire world and prevents their existence from being revealed to humans.
Aro is the de facto leader of the clan. His gift is tactile telepathy: he can perceive all the thoughts and memories of a human or vampire through physical contact.
Caius is a co-ruler, distinguished by his toughness and political cunning, but does not possess supernatural powers.
Marcus is the third leader, his gift is the ability to sense emotional connections between beings.
Felix is ​​one of the most powerful warriors of the Guardians, possessing colossal physical strength, but lacking mental abilities.
Jane and Alec are twins whose destructive mental powers make them extremely dangerous opponents.
Demetrius - chief ranger of the clan

Nomadic vampires.
They were a small clan that hunted humans and eventually came into conflict with the Cullens.
James is a predatory and tireless hunter,
Victoria is a red-haired vampire, cunning and dangerous
Laurent is a temporary member of a nomadic clan.

The Cullen family.
They feed only on animal blood, although sometimes they want human blood.
Carlisle Cullen, the head of the family, is a surgeon. His greatest strength is incredible willpower and self-control, allowing him to control his bloodlust. He uses his medical knowledge to save lives, not kill.
Esme Cullen is Carlisle's wife. Her strength lies in her deep emotional attachment and ability to create an atmosphere of harmony in the family.
Edward Cullen is a vampire who can read the minds of other humans and vampires remotely. He is the only one whose thoughts are inaccessible to him—a gift bestowed upon him by Bella Swan. He is thoughtful, stubborn, yet kind and compassionate. He is distinguished by exceptional self-control—he has spent years learning to suppress his bloodlust.
Alice Cullen is a clairvoyant who predicts the future.
Jasper Hale has the ability to sense and manipulate the emotions of those around him. Despite his harsh experiences, Jasper reveals his best side within the Cullen family. He is polite, tactful, and generally kind.
Emmett Cullen possesses immense physical strength, making him the family's primary protector. Emmett is the epitome of the family's good-natured "bully." He's cheerful, straightforward, and loves to joke.
Rosalie Hale is renowned for her unearthly beauty and physical strength, but she has no magical gifts. On the one hand, she is narcissistic, selfish, and proud. On the other, she is extremely devoted to her friends and family.

Werewolves are the enemies of vampires, they also have different abilities:
During the transformation, a person completely turns into a large wolf, significantly larger than a normal gray wolf.
Strength and speed. In wolf form, werewolves are comparable in strength to vampires, but inferior in speed.
Regeneration. Their wounds heal much faster than humans, but they are not immortal.
Telepathy. A mental connection exists within the pack: werewolves can hear each other's thoughts while in wolf form, ensuring perfect coordination in combat.
Control over transformation. The process is controlled by consciousness, but provoked by emotions.
The Quileute werewolves are the natural enemies of vampires. There has been a long-standing conflict between them, though in some situations, both sides are forced to form temporary alliances against the newborn vampire army.
After reaching 25 years of age, their development stops and they do not age unless they regularly transform into a wolf.

Vampires feed on blood (both human and animal), they have the following abilities:
Fast running, strength (they can lift heavy objects), immortality (they can't be killed easily, the only way is to cut off their head and burn them with fire), heightened senses (keen vision, hearing, and sense of smell), and eye changes (newborn vampires have bright red eyes. If a vampire drinks human blood, their eyes remain red; if they feed on animal blood, they turn golden-brown. If they are very thirsty, their eyes darken.). Each vampire also has their own gift, and they are all different.