Avsnitt 4

During an art class, Futaba, who has an obsession with breasts, end up drawing various pictures of breasts, one of which the principal determines is a work of art. Whilst at the triplets' house, Shinya tries to stop Yuudai from playing around with Mitsuba's panties, only to get labeled as a pervert himself. This leads Futaba to believe Shinya has an interest in Mitsuba's panties, and continuously tries to give him large amounts of panties all day . When he tries to stop Futaba, Shinya ends up in another seemingly perverted situation in front of Mitsuba.