Name: Rou Koyanagi Age: Hasn't counted since reaching 100, so he doesn't know. (Looks to be in his 20s) Birthday: November 24th Height: 173cm Weight: Approx. 54kg Self-Interpretation: A cool, tsundere assassin.

Name: Sho Hoshirube Age: Same as the universe, approx. 14 billion years old (Looks to be in his 20s) Birthday: September 10th Height: 177cm (180cm with shoes) Weight: Unknown (He claims around 65kg, but he's a pathological liar, so it's uncertain) Nicknames: Rubechi (also used as a first-person pronoun), Rubesho, Hoshirube. First person: Usually I (casual). I (polite) for people he meets for the first time. Self-Interpretation: Lies constantly but is kind. Strong.

Name: Rai Inami Age: 21 Birthday: October 23rd (Immortal) Height: 169cm Weight: Unknown, but maybe around 60kg? Blood Type: A Has a lime green hairpin on the left side of his bangs. Nicknames: Inami, Inamiso, Rai, Rai-kyun. First person: I (casual) Self-Interpretation: A bright, energetic, and strong mechanic.

Name: Kagetsu Murakumo Age: 20 (Eternal) (Likely immortal) Birthday: February 26th Height: 169cm Weight: 51kg Blood Type: Unknown Hair: White, curly, and fluffy (He's given up on styling it; this is just the default look) Personality: Has a youngest-child disposition and sometimes acts or speaks in a way that unconsciously seeks affection. A bit of a (major) airhead who often says nonsensical things. Nicknames: Kagetsu-kyun, Kagetsu, Murakumo, Kagemaru, Kagemon. First person: I (soft, polite) Self-Interpretation: An airhead, noisy, youngest-child type ninja and hero.