Before a high school test, Aoki borrows an eraser from his crush Hashimoto, but he's shocked when he notices another boy's name written on it.
Ahead of the school festival, Aoki and Ida work on the set for their class's play. But on the day of the show, the two leads come down with colds.
Aoki and Hashimoto clear up some misunderstandings. When Aoki gets a terrible score on a pre-midterm quiz, Aida suggests that Ida help him study.
Though Ida finally knows the truth about the eraser incident, Aoki feels more conflicted. Their teacher asks Aoki about his improved exam results.
Aoki resolves to tell Ida how he feels during a school camping trip, but the intense orienteering assignments afford him little opportunity to do so.
While Aoki remains unsure if Ida really likes him, he hears that the pretty manager of another school's volleyball team may have a crush on Ida too.
After Hashimoto confesses her feelings to Aida, she decides to undergo a drastic change. Ida and Aoki agree to have a lunch date on the school roof.
Aoki learns that he must improve his math grades if he wants to get accepted into college. A new student teacher gives him some private tutoring.
Hashimoto hopes to show her feelings for Aida by baking something for him. After enjoying a fun-filled date together, Ida invites Aoki to his house.
Aoki gets upset when he learns that Ida told his volleyball teammates that they are a couple. Hashimoto regrets baking a cupcake for Aida.