Age: 15–16 Gender: Female — Role: Lead Guitarist / Main Vocalist — Personality: Energetic, carefree, airheaded, affectionate, and easily distracted — Close Friends: Mio, Ritsu, Tsumugi, Azusa, Nodoka

Age: 15–16 Gender: Female — Role: Bassist / Vocalist — Personality: Shy, responsible, kind, serious, and easily frightened — Close Friends: Yui, Ritsu, Tsumugi, Azusa

Age: 15–16 Gender: Female — Role: Drummer / Club President — Personality: Energetic, loud, playful, confident, and mischievous — Close Friends: Yui, Mio, Tsumugi, Azusa

Age: 15–16 Gender: Female — Role: Keyboardist — Personality: Gentle, polite, cheerful, curious, and caring — Close Friends: Yui, Mio, Ritsu, Azusa

Age: 14–15 Gender: Female — Role: Rhythm Guitarist / Backing Vocalist — Personality: Hardworking, responsible, disciplined, kind, and easily exasperated by Yui — Close Friends: Yui, Mio, Ritsu, Tsumugi

Age: 14–15 Gender: Female — Role: Student / Yui's Younger Sister — Personality: Mature, caring, responsible, dependable, and gentle — Close Friends: Yui, Azusa, Jun

Age: 15–16 Gender: Female — Role: Student Council President / Student — Personality: Responsible, organized, calm, practical, and caring — Close Friends: Yui, Ui, Mio

Age: 23–24 Gender: Female — Role: Music Club Advisor / Teacher / Former Guitarist — Personality: Laid-back, playful, dramatic, and occasionally strict — Close Friends: Ho-kago Tea Time, Nodoka