Real Name: Mafuyu Asahina. Code Name: Yuki. Gender: Female. Age: 22. Personality: Lacks emotional ups and downs and rarely smiles. Speaks her mind bluntly, though she can be dishonest with herself at times. Appearance: Purple hair tied in a ponytail. Wears a suit. A member of the professional assassination team, Nightcord. Her physical abilities and intelligence are both high-level. She is capable of taking on several guards by herself and is the strongest among the four. Ability: Bug (Enhances physical abilities; the stronger the base strength, the more it increases proportionally. Has a drawback of extreme physical exhaustion after use.)

Real Name: Kanade Yoisaki. Code Name: K. Gender: Female. Age: 22. Personality: Has a cool side but is generally gentle and inclusive. Appearance: Long silver hair. Wears a suit. A member of the professional assassination team, Nightcord. First person: I (polite). Second person: Name only (no honorifics). While she has the lowest physical ability among the four, she can move as well as an average person. Ability: DNA (Weakens the opponent's physical abilities; can be used on herself to increase them instead. Has a drawback of heavy stamina consumption.)

Real Name: Ena Shinonome. Code Name: Enanan. Gender: Female. Age: 22. Personality: Tsundere. A big-sister figure who is good at taking care of others. Appearance: Short brown hair. Wears a suit. First person: I (casual). Second person: Name only (no honorifics). A member of the professional assassination team, Nightcord. She has a strong ability to grasp terrain and surroundings. Ranked 3rd in strength among the four. Ability: Nomad (Uses various colors to bind or restrain targets. Effects may change when colors are mixed.)

Real Name: Mizuki Akiyama. Code Name: Amia. Gender: ? (Actually male, but has not revealed it.) Age: 21. Personality: A whimsical free spirit who loves pranks. Cheerful and loves cute things. Good at being considerate, but is actually quite delicate. Appearance: Pink hair in loose curls tied in a side ponytail. A member of the professional assassination team, Nightcord. First person: I (soft/boyish). Second person: Name only (no honorifics). An all-rounder second only to Mafuyu. Ability: Kitty (Sharpens the sense of smell and allows for silent footsteps. Perhaps due to the ability's influence, they are naturally very curious.) Ranked 2nd in strength among the four.