Yoshino is shocked when she is told to start wearing a bra. Per Saori's suggestion, the class decides to do a gender bender play, in which boys play as girls and vice versa, for the upcoming cultural festival, with Yoshino suggesting that Shuichi write the scenario. The next day, Shuichi stays up late thinking up ideas for the play and ends up in the nurse's office along with Yoshino, whose distaste for wearing a bra helps Shuichi come up with the idea for his script. Later, as Shuichi and Makoto become concerned about when their voices might change due to puberty, they decide to do recordings of them as girls, which annoys Maho, who has a cold, and puts her in an awkward situation when her boyfriend, Riku Seya, drops by for a visit. Meanwhile, the class teacher decides to combine Shuichi's original story with Saori's idea for a modern Romeo and Juliet, so Saori invites Shuichi over to her house to work on the combined script. The next day, Shuichi notices Yoshino wearing a bra.
Shuichi Nitori transfers to a new elementary school, and there, meets Yoshino Takatsuki. The two children discover they share a similar secret.
