Minato Kiyomizu awakens in a hospital to learn that a car accident had left him in a coma for 203 days, erasing his middle school experience from his memory. Drawn to his former prowess in water polo, Minato resolves to resume playing the sport despite grappling with the stark contrast between his past and present abilities. Undeterred, he joins Yamanami High School's water polo club and undertakes the daunting task of recruiting new members to the team. Driven by a fierce determination to rediscover his lost talent, Minato aspires to ascend once more to the ranks of Japan's most elite water polo athletes.