Futaro is hospitalized for a while after falling sick at camp school. He returns to work tutoring the quintuplets, only to realize someone has fallen way behind.

There’s one week left to the term final. Futaro and the sisters are set on passing this time, but Nino and Miku can’t seem to get along.

Nino lets a dejected Futaro into her hotel room. Futaro tells her about how he’d run into the girl he met in Kyoto five years prior.

After discovering Yotsuba wants to quit the Track team but can't tell her teammates, Uesugi disguises Itsuki to resign for her.