After graduating from an all-boys' high school, Iori Kitahara moves away from home to go to college in a seaside town. He's eager to start a new chapter in his life - one filled with dreams of reinventing himself, meeting beautiful girls, and revelling in his youth. But when his new abode is his uncle's dive shop, Iori's college debut doesn't turn out as glamorously as he planned! Can Iori keep himself afloat, or will the booze-fuelled antics of his university's diving club wash him away?!