Sousuke reveals that he injured his shoulder while constantly training to face Rin in a race; Haruka asks his team members to give everything they have in the relay race.

Haruka secludes himself after Makoto and the others confront him about not being his usual self; Iwatobi and Samezuka continue to train for the nationals.

Haruka's passion for swimming is reignited after arriving in Australia with Rin and swimming alongside the country's national swim team.

Before graduation, Iwatobi comes in sixth place overall at the nationals; Makoto has plans to attend Tokyo University to become a swimming teacher.

Both the Iwatobi and Samezuka teams get to know each other by participating in a water gun survival game across the campus; the swimming club hosts a maid café.

The swim teams go to the Cherry Blossom Festival, where Makoto is hastily recruited to replace a missing costumed wrestler.

Haruka becomes a freshman at Hidaka University and finds his former middle school friends Asahi and Ikuya there. Swim coach Mikhail Makarovich takes notice of Rin in Australia.

During the night, Haruka heads to the pool and finds Ikuya looking at the stars. He remembers how his friendship with Ikuya hit the rocks in high school, but his attempts to make amends don't go as planned.

Rin meets an international competitor named Natsuya Kirishima, who hopes to train under Mikhail.

Haru, Makoto and Asahi visit Shimogami University in hopes of speaking to Ikuya, but they can't find him even after looking all over campus. Hiyori, however, sees them and makes it his mission to keep them away from Ikuya.

New recruit Romio worries about making a false start during an interschool practice; Natsuya advises a nervous Sousuke ahead of his shoulder surgery.