Jun Suzuki

Role: Bassist
Instrument: Bass Guitar

Jun is Azusa's and Ui's classmate who often hangs out with the latter. Jun is generally a playful and easygoing girl, but she is sometimes rude without realizing it, compelling Azusa to reprimand her. Ui tries to get her to join the light music club but ultimately fails due to a strange visit to the club room. However, she starts to regret it when she hears about all the activities the club does. She has a pet cat and plays the bass.

Jun has an older brother, Atsushi Suzuki, nicknamed Acchan by her. He plays the bass at a university and helps Jun on "secret training sessions" because she apparently "still sucks at bass".