A girl who loves to sing. Extremely shy and timid. While awkwardly wandering around trying to join the light music club for her high school debut, she ends up being invited to the a cappella club instead.

A born vocalist aiming for a career in classical singing. With a stoic personality, she often expects high standards from others, which tends to cause conflict.

President of the a cappella club. A gentle girl who always wears a soft smile, she also possesses an extraordinary talent for communication, cleverly roping both Uta and Ururu into joining the club.

Vice president of the a cappella club. She excels in both academics and sports, has an elegant androgynous appearance, and is very popular with the girls.

A flashy blonde girl who dreams of making it big as a MeTuber. Although she talks big, she’s fickle and careless, which often leaves others exasperated.

A quiet girl who no one in class has ever seen speak. She chooses not to interact or communicate with anyone, but one day Uta catches her secretly talking on the phone with her parents.