The girls at Mouse House are fired up for a new school semester. After their first day, Hoho tasks them to write a new song for their CD debut and the girls get closer during the process.

Fruit Tart comes up with their official autographs to prepare for their CD debut. Hemo and Tone share a fascination with Ino and follow her and Hayu from school. They end up going to karaoke together to practice singing.

Oto officially reveals herself as the acting president of Cat Productions and offers Fruit Tart to participate in a large-scale project, the National Idol Championships.