Episode 7

An anonymous letter that read "There is a fake mother in the first grade class" caused an uproar. The mothers of Liuhehui are cooperating with the school to prepare for the first grade routine activity-“Liuhe Summer Camp”.Karu (Haru), who is assigned to be responsible for the ingredients, has doubts about Sayuri (Minami Tanaka), who has suddenly changed her attitude.

On the other hand, Mokai (Rina Kawaei) is facing review for the upcoming listing of RAINBOWLAB.After learning that the person in charge of the review was “鬼” Kurita (Sukino Yamazaki), who is known for his strictness, all employees worked together to think about the questions that might be asked.

On the day of the summer camp, Reika (Noro Kayo) told her daughter Riko (Toba Anzu) that her performance here will affect the selection of the "Genius Study Abroad System".In the Walk Rally, which requires passing each checkpoint one by one, other teams arrived at the finish line one after another, but a certain child disappeared at this time...