Class 2-A The daughter of the Chairman of Private Hatsune Academy. A member of the Light Music Club, she is hailed as the "Diva." She serves as the guitarist and vocalist. A member of the student discipline committee, the entire student body is enamored by her pure, dignified, and beautiful presence (and her refined way of speaking). In reality, she is friendly and only opens up to those she trusts (at which point her speech becomes more casual). She is both highly intelligent and athletic. She is close friends with Luka and views Rin and Len as younger siblings. She deeply respects her seniors, MEIKO and KAITO.

Class 2-A A member of the Light Music Club who acts as a big sister figure to everyone. She plays the bass. She is close with her classmate Miku and they talk often. Having become a second-year, she is determined to show her reliable side as a senior. she holds a deep admiration for Miku and often looks to her as a role model.

Class 1-A A member of the Light Music Club and Len's twin sister. She plays the keyboard. A pure-hearted prankster, she is often seen playing tricks on the other club members. She absolutely adores her seniors.

Class 1-B A member of the Light Music Club and Rin's twin brother. He plays the guitar. He has a very kind and outgoing personality and always supports Rin. He has a strong admiration for KAITO.

Class 3-B The vice-president of the Light Music Club who supports everyone from behind the scenes. He plays the bass. He is a reliable figure whom everyone turns to, and he responds to everything with kindness. He has a long history with MEIKO and occasionally finds himself on the receiving end of her unreasonable whims.

Class 3-B The dependable president of the Light Music Club. She plays the drums. A strong-willed leader who pulls everyone forward, characterized by her powerful singing. She has known KAITO for a long time and treats him somewhat roughly. She dotes on her juniors. While powerful, she never uses foul language.