Taira, the newest member of Beck and the others have their first session together to start the band off on a good note. Koyuki's teacher is on maternity leave and a new cute teacher is introduced. As coordinator of the choir contest, she wants Koyuki to be the leader for the class to get them ready for the contest.

Koyuki and Saku become friends. Koyuki gets nominated for the most difficult swimming races in the school's competition. Koyuki takes Saku to see Beck's show.