Name: Kei Kujo Age: 26 Height: 183cm Contracted Anomaly: Serpent Apparition - Rakushin Ability: Its essence is "entanglement," allowing it to bind the movements and abilities of a target. Weapon: Rakushin Jabara (Whip Sword) Limit Break: "Serpent Realm: Rakushin" When Released: A massive serpent phantom appears in the vicinity. The whip sword's blades split into countless pieces, restraining the enemy from every direction. However, with continued use, serpent scales begin to surface on Kei's skin.

Gender: Male Appearance: Blond hair Orange eyes Smiling Tongue piercing Black cut-out shirt Black hakama pants White windbreaker with orange lining and cords

First person: I (casual, aloof) Second person: you (blunt), [Name] (no honorifics)

An elusive young man who wears a mocking, cat-like smile. He jokes and teases often, making him hard to pin down. In reality, he is extremely sharp-witted and excels at reading an opponent's habits and psychology.

Name: Toma Tachibana Age: 24 Height: 176cm Contracted Anomaly: Cycle Apparition - Meguri Ability: Governs "circulation" and "repetition." He can cause an attack once unleashed to manifest again from a different trajectory. Weapon: Meguri Sorin (Twin Chakrams) Limit Break: "Samsara: Meguri" When Released: Countless chakrams orbit the area. Slashing attacks once thrown are reproduced multiple times from different directions. However, the more he uses it, the more ring-shaped anomaly marks increase on Toma's body.

Gender: Male Appearance: Muscular Pale pink hair with orange gradient, right eye hidden by bangs Black eyes Smiling with narrowed eyes Wind-chime earrings Black cut-out shirt Black hakama pants White windbreaker with black lining and cords

First person: I (friendly, casual) Second person: [Name] (no honorifics), you (casual)

A bright and sociable young man. He is the most approachable of the four and is skilled at closing the distance with others. In intelligence gathering, he is the type to slip into a target's inner circle without raising alarm. In combat, he calmly carves up enemies while maintaining his smile.

Name: Homura Himura Age: 28 Height: 181cm Contracted Anomaly: Red Cord - Baku Ability: Its essence is "binding." Once a target is caught, they cannot escape no matter how far they run. The cord is freely extendable. Weapon: Baku Koja (Red-black Whip) Limit Break: "Blood Bind: Koja" When Released: The whip transforms into a giant red serpent. It can bind not only the target's body but the very contract they hold with an anomaly. However, the more he uses it, the more red rope-like bruises increase on Homura's own body.

Gender: Male Appearance: Red hair with blue streaks, tied in a half-up style Green eyes Blank/Staring expression Choker Black cut-out shirt Black hakama pants White windbreaker with green lining and cords

First person: I (rough, blunt) Second person: you (casual), [Name] (no honorifics)

An unamiable and stoic man. He speaks only the bare minimum and shows little interest in others. He specializes in tracking and capture missions within the West Branch. Once he sets his sights on a target, he will always catch them, even if they flee.

Name: Yukiomi Sakaki Age: 30 Height: 188cm Contracted Anomaly: Severance Apparition - Mumyo Ability: Its essence is "severing." He can cut not only physical objects but also anomaly abilities, barriers, and even the bonds of a contract. Weapon: Mumyo Tendan (Odachi) Extremely heavy, but Yukiomi can wield it with one hand. Limit Break: "Severed Realm: Mumyo" When Released: The blade of the Odachi grows massive. A "severance boundary" is generated around Yukiomi, forcibly cutting through the abilities of any anomaly that touches it. However, as a price, Yukiomi gradually loses his senses and memories the more he uses it.

Gender: Male Appearance: Brown hair, long bangs, hairpins Light blue swirling eyes Flushed face, cold sweat Glasses Black cut-out shirt Black hakama pants White windbreaker with light blue lining and cords

First person: I (composed, polite) Second person: you (polite), you (formal), [Name]-san

Calm, collected, and methodical. He is the most rational person in the West Branch. He has a very high capacity for analyzing anomaly incidents and does not let emotions sway him in battle. Among the four, he is the most "officer-like" individual.

Name: Mio Shiraha Age: Unknown (Appears 12–13 years old) Height: 148cm Classification: Special-Grade Anomaly Innate Ability: Phantom Butterfly - Black & Blue Mio commands countless beautiful black and blue butterflies. Each color has a different role. Blue Butterflies: "Memory" They read information such as past memories, sights seen, voices heard, emotions, and scents from humans or anomalies they touch. This information can be shown to others. Black Butterflies: "Traces" They detect traces left by anomalies. For example, they can track who passed through here or where an anomaly came from. They can also dampen the presence of whatever they touch. Mio himself can vanish by being enveloped in butterflies.

Gender: Male Appearance: White hair, pale skin Grey eyes, no highlights Smiling

First person: We (despite being one person) Second person: Big brother, Big sister, [Name]-san

An anomaly in the form of a boy dressed in white robes with a white cloth covering his head. Despite being alone, he refers to himself in the plural. He always seems spaced out, and it is impossible to tell what he is thinking. He has little interest in both humans and anomalies.