Haruka Nanase"s next arena is Sydney, the city he had longed for and once visited. While taking a pause before his departure, Haru encounters a fellow athlete from the All‑Japan Invitational. Carrying every emotion stirred by previous races deep within his heart, Haru takes step into new world.
During this encounter, memories of past flood his mind, reinforcing the reason he loves swimming. The champion"s presence adds an challenge.
There stands the champion Albert Volandel, waiting for him.
As the Sydney tournament draws near, each competitor strives to lift their morale. What emotions drive every swimmer, and what do they pursue when aiming for the pinnacle of world competition?
Their fierce struggle against the water begins here――!