Futaro Uesugi takes on a tutoring job that promises five times the normal pay; Futaro discovers his new job is going to take more than five times the work.

In response to the quintuplets' hostility toward him being their tutor, Futaro challenges them to an exam.

Unhappy that Futaro is beginning to get along with her sisters, Nino decides to take matters into her own hands.

Futaro receives his first pay and takes Raiha to the arcade, where she's always wanted to go.

The fireworks have started, but the girls are still split up; Ichika wanders off on her own and Futaro goes after her.

The midterm exams are coming up, and the girls' father set Futaro up to a seemingly impossible task.