5-toubun no Hanayome

Synopsis

Over breakfast, Itsuki bemoans her difficulties in getting along with Futaro after their recent fight; Ichika playfully suggests that she disguise herself as Miku to talk to him, and Nino soon joins in. In Miku's room, Futaro wakes to find himself next to a sleeping Miku; deducing her identity from her pajamas, he sneaks out of the room, only to find himself confronted by "Miku" (Itsuki in disguise). He is not fooled and quickly retreats, much to her chagrin. Futaro, Ichika and Yotsuba go to the library, where Ichika pretends to have left her pencil case at home to cover for Futaro going back to speak to Itsuki. He encounters Miku half-way and tells her that he slept on the living room floor, a lie to save them both from embarrassment. Finding a sleeping Itsuki, and noticing she is using Miku's headphones, Futaro addresses her as Miku, to get her to talk more openly. They both apologise for their fight. Futaro stays over for another night to help the quintuplets study for their midterm exams, which they almost miss by over-sleeping. They all manage to sneak in past the supervisor, by wearing Yotsuba's ribbon, who had arrived on time, making him believe the same girl is going in and out of the school. On their midterms, each quintuplet passes one subject out of five, and Futaro prepares to be fired as their tutor. However, much to everyone's surprise, Nino takes the phone and explains to their father that they all managed to approve at least one subject under Futaro's guidance, which is proof enough for him to keep Futaro as a tutor. With all of the quintuplets finally prepared to accept his tutoring, Futaro offers to take them for celebratory parfaits.

(Source: Wikipedia)