Nachdem er seine Gefühle schließlich ernsthaft konfrontiert hat, erzählt Haruka Makoto, Nagisa und Rei von seinen Entscheidungen für die Zukunft. Der Iwatobi-Schwimmclub ist wieder vereint, und während alle ihre Startblöcke bei den Nationalwettkämpfen besteigen, sind sie entschlosse, für sich selbst, für ihre Freunde und nun auch für die Zukunft zu schwimmen.
Upon returning from Australia, Haruka gives his thanks to Rin and rejoins his teammates, deciding that he will start focusing on times and winning for the sake of reaching his new dream to swim in the wide open world. He then apologises to Makoto, who explains he is going to a Tokyo university in order to become a swimming teacher. On the night before the national tournament, the group reminisce about the past two years together, with Nagisa and Rei becoming emotional about Haruka and Makoto's impending graduation, though Haruka assures them will always be connected. Following a memorable experience at the nationals, in which Iwatobi manage to win, it is graduation time. Rin passes on the position of Samezuka's captain to Nitori, before telling Sousuke that he'll wait until he returns to the world of swimming.
Rin et Haru reviennent d'Australie pour participer aux nationales. Samezuka et Iwatobi parviendront-ils à se classer à ce niveau ? Quel projet Haru a-t-il trouvé pendant son voyage ?
Avendo finalmente affrontato i suoi sentimenti e pensieri, Haruka parlerà a Makoto, Nagisa e Rei riguardo alla sua decisione per il futuro. Il club Iwatobi è di nuovo unito, forse più di prima, e sono pronti per affrontare le nazionali, pronti a nuotare per se stessi, per gli amici e per il loro futuro.
린과의 호주여행 이후 망설임을 떨쳐낸 하루카는 전국 대회를 앞두고 안정된 모습을 보여준다.
그러나 레이와 나기사는 이것이 마코토, 하루카와 함께 하는 마지막 혼계영이 될 거라는 생각에 눈물을 보이는데.
Haruka regresa de su viaje con Rin y los chicos lo reciben. Recordarán todo lo que pasaron para llegar hasta donde están.
