Tsukushi and her parents go on vacation with Kazuya to Atami. There she is greeted by Tsukasa standing atop his yacht. Shizuka invites her to a party they are holding that night and helps her get ready. Tsukushi feels like "Cinderella" for a brief time until she sees Rui dancing with Shizuka.

Tsukasa asks Tsukushi on a date, though she does not hear him at first. As such, she is confused and arrives several hours late. She offers to treat him to tea and the two become stuck in an elevator. When Tsukasa develops a bad fever, Tsukushi takes care of him despite still disliking him.

A photo of Tsukushi and Junpei makes the cover of a magazine. Tsukasa becomes angry, which leads to him beating up Junpei. He confesses his feelings to Tsukushi again, but she does not answer him. A couple days later, she becomes a bullying target again after receiving another red card.

Kaede decides to implement her plans for Tsukasa earlier than expected. Meanwhile, Tsukushi and Tsukasa are spending the night on his family's yacht. She gives him his birthday present. The next morning, his mother attempts to bribe Tsukushi and her parents with money.

Tsukushi pretends to be happy about Shigeru and Tsukasa dating. She decides to take it as a new start, but has a hard time forgetting Tsukasa with Shigeru constantly asking for advice. At school, she and Rui overhear Tsukasa and Shigeru arguing before witnessing their first kiss.

After Tsukushi passes the exam for the exchange program, Tsukasa learns that his mother arranged it all to separate them. He tells Tsukushi and explains what really happened with Shigeru. Confessing that he still loves her, Tsukushi finally accepts his feelings and he kisses her.