冬海 笙子

The only other female competitor from the school, Shouko plays the clarinet and is also shown to play a little piano. Shouko is a first year at Seisou, a small, slim and extremely shy girl. She is very hesitant and easily intimidated. During the training camp, her vacation house was used, indicating she comes from a very wealthy family. She looks up to Kahoko as a role model and wants to be like her. She and Kahoko are good friends; Shouko even calls her "Kaho-senpai" later in the series.