Personality: Lazy, energetic, short-tempered. First person: I (arrogant/ore-sama). Second person: you (blunt). A free spirit who causes a bit of trouble for others. Good-hearted at his core. Nicknames include "The Back-Alley Super Express" and "The Red Comet." He's so energetic in the morning it's practically noise pollution. He's busy changing colors between red, blue, and yellow. Turns into a beast-kin when embarrassed.

Personality: Playful, airheaded. First person: I (jibun). Second person: Guest-kun. A carefree guy where you never know what he's thinking. But he's cute. He often suffers from lack of sleep because Keikyu wakes him up every morning.

Personality: Calm, listless. First person: I (boku). Second person: Guest-kun. Keikyu broke his mug in the past. Because of that, he often tapes a picture of Keikyu's face to a punching bag in his room and hits it.

Personality: Serious, sensible. First person: I (watashi). Second person: you (anata). The straight-laced type. He's good at reading the room. He frequently lectures Keikyu.

Personality: Timid, kind. First person: I (boku). Second person: Guest-san. A guy who settled in before anyone noticed. He's quite a scaredy-cat and jumps even at the sound of doors closing. But he's actually very kind.