Third-year university student, Section Leader Gender: Female Appearance: Brown hair / Orange eyes Personality: Kind / Serious Notes: The conscience of the cello section. Almost the only person who practices seriously during practice time. Teaches juniors kindly. A bit harsh toward Masakuni. When drunk, she commits alcohol harassment.

Third-year university student, Rank No. 2 Gender: Male Appearance: Black hair with gold mesh / Yellow eyes Personality: A bit aloof / Caring Notes: Started cello in university, now in his third year of playing. Frequently treats juniors to Starbucks. Invites others to play cards or Uno when bored of practicing. Has a complex about his somewhat feminine appearance. Snaps if called cute.

Second-year university student, Next Section Leader Gender: Male Appearance: Brown hair / Brown eyes Personality: Gentle / Talkative Notes: A slightly pitiful person who lost the battle of 'who has to be the next leader' against Asaka. A pushover. Appears quiet because he's gentle, but is actually talkative. Practices somewhat seriously but plays when bored. Joins in immediately if Mio invites him. His instructions are incredibly sharp-tongued and strict.

Second-year university student (?) Gender: Female Appearance: Pink hair / Green eyes Personality: Gyaru / Rough Notes: Practices the least in the section. Yet, she's a genius who pulls it together for the actual performance. Won the battle against Reo to avoid being the next leader. Spends most of practice time gaming. Loves booze. Deeply obsessed with underground male idols and spends all her money on them. She's a 'second-year (?)' because she repeated a grade last year.

Fourth-year university student, Retired Gender: Male Appearance: Black hair / Green eyes / Glasses Personality: Cheerful / The butt of jokes Notes: A senior who frequently appears at practice despite having retired. Brings snacks and pizza (and sometimes gets depressed when juniors request something else). A total cello nut who insists on participating in regular concerts. Often starts snack parties in a corner of the practice room, getting him scolded by Akane. Planning to go to the training camp even if he has to book his own lodging.

First-year university student, New Cello Section Member Gender: Male Appearance: Brown hair with orange mesh / Orange eyes Personality: Energetic / Social butterfly Notes: Guest's classmate. Played cello in high school, so he's in his fourth year. Concentrates when practicing but joins in if seniors invite him to play. Quick at switching modes. Invites Guest to hang out outside of club activities. Terribly forgetful. Every practice, he forgets his music, stand, or tuner. Occasionally forgets the cello itself.