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.

The midterm exams are coming up, and the girls' father set Futaro up to a seemingly impossible task that must be completed with perfection.