With the festival behind schedule and Tsukasa's health worrying her, Miss Takahashi suggests they cancel some events, but Tsukasa assures her the festival will be ready unchanged. Knowing that the festival committee is short of manpower, Junichi manages to convince Tsukasa to get their class to help. However, a trio of girls complain and accuses Junichi and Tsukasa's flirting with each other as the root of the festival’s problems. When she fails to end the argument nicely, Tsukasa switches to her real personality and cites the trio’s hypocrisy, silencing and shocking everyone. Later, Tsukasa brings Junichi to the shrine again where she burns her notebook, makes him promise to be hers and seals the deal with a kiss. The next day at PE class, Tsukasa is ganged up by the trio again in dodgeball but the rest of class sides with her, forcing the trio to give up. However at noon, only Masayoshi, Keiko, and Kaoru remains to help Junichi and Tsukasa. That night, Junichi tries to convince Tsukasa to apologize to the class but, feeling betrayed that he does not understand her, she slaps him and runs away. The next day, Junichi learns that Tsukasa has apologized to the trio and began working with them again. But what worries him is that Tsukasa is displaying a disturbingly sweet, friendly personality and claims the real Tsukasa is no more.
創設祭の準備が遅れ始めていた。なんとかしようとする詞と純一は人手を増やすために、クラスメイトへ手伝いを頼むことにする。だが、クラスの一人が準備の遅れは詞が原因だと問い詰め、それを聞いた詞は…
Con el festival retrasado y la salud de Tsukasa preocupándola, la señorita Takahashi sugiere que cancelen algunos eventos, pero Tsukasa le asegura que el festival estará listo sin cambios. Cuando no logra terminar bien la discusión, Tsukasa cambia a su verdadera personalidad y cita la hipocresía del trío, silenciando y sorprendiendo a todos. Más tarde, Tsukasa lleva a Junichi al santuario de nuevo donde quema su cuaderno, le hace prometer que será suyo y cierra el trato con un beso. Esa noche, Junichi intenta convencer a Tsukasa de que se disculpe con la clase pero, sintiéndose traicionada porque él no la entiende, ella lo abofetea y se escapa. Al día siguiente, Junichi se entera de que Tsukasa se disculpó con el trío y comenzó a trabajar con ellos nuevamente. Pero lo que le preocupa es que Tsukasa está mostrando una personalidad inquietantemente dulce y amigable y afirma que el verdadero Tsukasa ya no existe.
Le festival ayant pris du retard et la santé de Tsukasa l'inquiétant, Mlle Takahashi suggère d'annuler certains événements, mais Tsukasa l'assure que le festival sera prêt sans changement. Sachant que le comité du festival manque de main d'œuvre, Junichi parvient à convaincre Tsukasa de demander à sa classe de l'aider.
