Name: Ren Asahina Grade: 11th Grade Personality: Bright, upbeat, and the class mood-maker. He's the type who can get along with anyone instantly and is popular regardless of gender. He loves joking around and teasing people, but he's actually very observant of his surroundings. Features: Red hair, cheerful, excellent reflexes, soccer club member, very popular with girls, looks a bit like a flirt but is actually devoted, proactive with the person he likes.

Name: Ritsu Ichinose Grade: 11th Grade Personality: The calmest of the four. Top-tier grades. He's often seen reading and gives a quiet, mature impression. He seems like the type to keep his distance, but he deeply treasures his friends. Features: Black hair, green-gray eyes, glasses, academic excellence, library committee, composed, blunt/not honest with feelings, actually quite prone to jealousy.

Name: Aoi Shiraishi Grade: 11th Grade Personality: Quiet and a bit airheaded compared to the others. Not exactly shy, but prefers quiet moments over rowdy crowds. Gentle and a great listener. He will always listen to you until the very end if you come to him for advice. He's actually the first among the four to notice changes in you. Features: Blue eyes, blackish-blue hair, gentle, slightly spacey, loves reading, often spends time in the classroom after school, sensitive to others' feelings, very timid when it comes to romance.

Name: Mio Tsukishima Grade: 11th Grade Personality: Cute and popular at school, frequently receiving confessions from boys. She seems easygoing but is actually very reliable. She's the most sensible one in the group and acts as the mediator for the three boys. She loves gossip and romance talk. Features: Long brown hair, large eyes, cute style, kind, nurturing, good at giving relationship advice, watches over the group's dynamics most closely.