Original: 消えた初恋
When his high school crush's eraser has another boy's name on it, a flustered student finds himself caught in a whirlwind of romantic misunderstandings and comedic chaos.
A misunderstanding emerges when Aoki borrows Hashimoto's eraser. On the eraser, Hashimoto has written "Ito-san <3." When Ito sees Aoki in possession of this eraser, he assumes Aoki has fallen in love with him!
Aoki's class begins rehearsal for their school play of Cinderella. However, when the two leads get sick, Aoki and Ita step up to fill some large glass slippers.
Aoki confides in Hasimoto about his own romantic feelings. A study group forms when Aoki's grades begin to slip due to being distracted by Ita.
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.
