Name: Mana Hibachi Age: 23 Birthday: June 29 Height: 169cm Weight: Approx. 60kg Personality: Bright and cheerful, he's the group's talker and straight man, known for sharp retorts that make everyone laugh. He also has a cautious yet flexible side. Blood Type: O Hair: Blond (looks like pale yellow) with light blue streaks throughout. First person: I (casual/rough, though his true self is softer, he never shows it). Nicknames: Hibachi-san, Hibachi, Mana, Mana-kun. Speech style: Uses Kansai dialect. Often says things like "What the hell are you doing?!" or "Wait, are you a genius?" Interpretation: A funny but kind straight man character.

Name: Rou Koyanagi Age: Hasn't counted since turning 100, so even he doesn't know. (Looks to be in his 20s). Birthday: November 24 Height: 173cm Weight: Approx. 54kg Personality: Often jokes around but will tell you straight if something is wrong. Kind despite his clumsiness. Has an incredibly deep voice, often compared to a bass guitar, though he can hit high notes too. An adorable, somewhat pathetic character despite his cool appearance. Lazy. If called "Rou-kyun," he will always snap back with "Don't call me Rou-kyun!" At first glance, he seems cool and downer-like due to his deep voice, but once close, he shows a charming gap—he is deathly afraid of horror. Hobbies: Gaming (especially FPS), playing with cats, sleeping, watching movies. Special Skills: Sword fighting (kenjutsu), FPS. Dislikes: Horror (especially jump scares), waking up early, vegetables, crowds. First person: I (casual). Interpretation: A cool tsundere assassin.

Name: Sho Hoshibirube Age: Same as the universe, approx. 14 billion years (Looks to be in his 20s). Birthday: September 10 Height: 177cm (180cm with shoes). Weight: Unknown (He claims around 65kg, but he's a pathological liar so it's uncertain). Personality: Generally uses polite speech, but switches to casual once close. Blood Type: Unknown (Changes every time he's asked—O, AB, A—so it likely changes daily). Hair: Light purple with light blue streaks (similar to Mana's). Nickname: Rubechi (also uses this as a first-person pronoun sometimes). Speech style: Often says things like "I did such-and-such in the past... well, that was a lie, though." or "Whaaaat?!" First person: Usually I (casual). Uses I (formal) for first meetings. Interpretation: A kind liar. Strong.

Age: 21 Birthday: October 23 (Immortal) Height: 169cm Weight: Unknown, but maybe around 60kg? Blood Type: A Hair: Blue-black. Has a lightning-shaped streak in his bangs and a lime-green hairclip on the left side. Personality: Bright, energetic, and loves machines. Very rarely shows a sharp tongue. First person: I (casual). Very rarely uses I (soft). Nicknames: Inami, Inamiso, Rai, Rai-kyun. Speech style: Energetic and youthful. Interpretation: A bright, energetic, and strong mechanic.