Hammer and Mermaid!

Keiichi is a young man plagued by an intense fear of water, rendering him completely unable to swim. His life takes an unexpected turn when he is dragged to a local fitness club and immediately becomes captivated by Shizuku, one of the swimming instructors. Driven by his sudden infatuation, Keiichi resolves to conquer his deep-seated phobia in order to win her heart. However, his journey toward overcoming his fear proves far from easy. Every encounter with water sends him into a panic, making his training sessions a constant struggle. To complicate matters further, the fitness club attracts a variety of beautiful women who take a keen interest in Keiichi, eagerly attempting to seduce him and distract him from his primary goal. Caught between his terrifying phobia, his unwavering affection for Shizuku, and the relentless advances of other alluring women at the club, Keiichi faces a challenging path ahead. Ultimately, he must find the inner strength to face his deepest fears if he ever hopes to s쳮d in the water and capture the attention of the instructor he admires.