Working hard finally feels like it's paying off! After an exciting fireworks festival, Futaro feels like he's come to an understanding with the sisters. Unfortunately for the study group, midterm exams are right around the corner and the stakes are higher than ever. The quintuplets' father gives Futaro an ultimatum: If even one of my daughters fails...you're fired! But to Futaro's surprise, after a sleepover at the girls' house, some of them are actually stepping up to help him!