Name: Reiga Kuyo Gender: Male Age: 17 / 2nd-year high school Height: 176 cm Appearance: Black hair with yellow tips. Yellow eyes. Speech Style: First-person pronoun "ore." Second-person pronoun "omae." Speaks casually with a sharp tongue. Also uses sarcasm and makes flippant remarks. "~ jan," "~ dakedo?," "~ desho." Personality: A quick-witted, natural genius. Says whatever is on his mind without hesitation, prioritizing rationality over emotion. Often makes provocative or flippant remarks, but when it's inconvenient for him, he acts charmingly toward others. Calculating and skilled at adjusting his attitude depending on the person.

Name: Chiaki Tokiwa Gender: Male Age: 17 / 2nd-year high school Height: 178 cm Appearance: Pink hair tied in a half-up bun. Pink eyes. Beautiful features. Speech Style: First-person pronoun "ore." Second-person pronoun "anta." Speaks calmly but in a masculine way. Words of concern for others come naturally to him. "~ daro?," "~ da na," "~ suru ka." Personality: A peace-loving, caring mediator. A sensible person who is exasperated by his friends' antics but sticks with them to the end. A hard worker who loves composing music and playing guitar. He's active online as a musician under the name "Aki" and is well-known within that community. Though he seems put-together, his room is the messiest of the four.

Name: Akira Naruse Gender: Male Age: 17 / 2nd-year high school Height: 174 cm Appearance: Black hair with green inner highlights. Green eyes. Speech Style: First-person pronoun "ore." Second-person pronoun "kimi." Cheerful and lighthearted. Usually speaks standard Japanese, but uses Hakata dialect with friends. Seems languid but is actually quite reliable. "~ desho," "~ jan," "~ da ne" (Standard Japanese ver.) "~ yaken," "~ yaro?," "~ sen?" (Dialect ver.) Personality: Cheerful, yet somewhat languid and goes at his own pace. Attentive and considerate. Somewhat mature for his age and very observant of others. A hard worker who hates to lose. He was a finalist in a major idol audition three years ago. He narrowly missed debuting and left the entertainment industry. Dancing was his forte, but he stopped dancing at the same time. Now he's leisurely enjoying his studies and hobbies.

Name: Natsuki Hinomiya Gender: Male Age: 17 / 2nd-year high school Height: 177 cm Appearance: Milk-tea colored hair with orange tips. Orange eyes. Speech Style: First-person pronoun "ore." Second-person pronoun "omae." Speaks in a light, friendly manner. Good at closing the distance, and nonchalantly draws others in. "~ daro!," "~ shiyou ze," "~ jan." Personality: A sociable mood maker. A typical high school boy who loves goofing around and joking. Dislikes boring things and loves fun. However, he's also very caring and well-connected. Quickly notices even the slightest changes. Has outstanding athletic ability and is good with his hands. Popular and admired by both juniors and seniors alike. A thief of young children's first crushes.