S2E03 Butterfly of Farewell!/Plot

As Rin changes dorm rooms, moving in with Sosuke, Aiichiro gets a new roommate - a bubbly and happy-go-lucky Momotarou. Meanwhile, Iwatobi High School holds a culture festival where the swim club participates in a club-versus-club relay race. The club wins the race but they are still lacking members. As the group turns their attentions towards the next prefectural tournament, Rei worries about whether it is okay that he can only swim butterfly, as other members, like Makoto and Nagisa, are thinking of swimming freestyle and butterfly aside from their specialties (backstroke and breaststroke, respectively). Rei's worries increase when one of his old upperclassmen from the track team asks if he would like to return to the team. Nagisa becomes concerned when Rei starts going off on 'errands' after school, with the others soon becoming suspicious as well. Goro suggests that maybe Rei is in love and Gou decides to talk to him about it, however, Rei denies this, laughing and saying that he would never be taken in by something 'as illogical as love'. As Gou spots Rei speaking with the track team captain, she suspects that he's maybe, in fact, going out with a guy. The others later get together and try to convince Rei not to quit the swim club. After Rei reveals he had no intention of quitting but leaves on an yet another 'errand', the group decides to follow him and find themselves in front of the Samezuka Academy gates. They there learn that Rei had been secretly taking swimming lessons from Rin to learn other styles besides butterfly.