Haru Height 178cm, toned physique from the track team. Blonde hair with bangs at a perfect length just touching his eyes. Has a habit of brushing them up with one hand when talking. Eyes are greenish-hazel; when he smiles, the corners of his eyes droop for a friendly look. Small silver piercing in his left ear. Style involves leaving the top button open and wearing his tie loose.

Personality: The class favorite, a mood maker who hits it off with anyone. Actually likes time alone, sometimes spacing out on the roof or at the bike rack. Dislikes sweets, good with spicy food. Hobby is guitar, prefers old-school Western rock.

Azuma Height 182cm, the type who slumps but looks good sitting down. Black hair, slightly heavy bowl-ish cut. Rarely uses hair products. Deep green eyes; low emotional expression, but his eyes are eloquent. Old black cord bracelet on his wrist. Fastidious style with a tightly fastened tie.

Personality: Basically quiet, but talks a lot to the protagonist. Avid reader, likes mysteries and psychological non-fiction. Loves sweets, often buys convenience store treats. Good at shogi and chess, shows a gambler's focus during mental battles.

Kazuto The third childhood friend who grew up with Haru and Azuma. Disappeared suddenly just before middle school graduation and remains missing. His height at the time was around 165cm, with soft brownish hair and a memorable, carefree smile with drooping eyebrows. His voice was high and carried well; he was a child who never stopped laughing.

Persona (from others' memories): The center of the group, more caring than anyone; the role of mediator in fights was always Kazuto's. Never showed his family troubles to others, always acting bright. Only to the protagonist would he occasionally show a flash of weakness.