Ou Motoura, a retired national men’s volleyball athlete, stepped into coaching after his playing career ended. Assigned initially to Aota Academy’s boys’ volleyball team, he shifted to the girls’ team following the disbandment of the male squad over disciplinary breaches—a transition he resisted, grappling with altered responsibilities and the weight of his professional legacy.

His coaching blends rigorous technical drills with personalized mentorship, prioritizing physical conditioning, skill refinement, and team cohesion. This hands-on approach sometimes blurs boundaries, sparking romantic tensions with players as emotional investment deepens. A unique challenge arises with Nanase Morimura, a transfer student whose elite volleyball performance hinges on sexual arousal, demanding his direct intervention to activate her abilities during critical matches.

Sporting spiky silver-blue hair, dark grey eyes, and ever-present sunglasses, Motoura’s demeanor wavers between clinical detachment and burgeoning camaraderie, especially amid clashes like his rivalry with Haruo Kabanishi—a rival academy coach nursing a grudge from their shared history.

Later arcs follow his leadership during an intensive training retreat at a hot spring resort, where new recruits with covert motives strain his strategic command. These events probe his capacity to harmonize interpersonal friction with tactical demands, charting his growth from a resentful placeholder to an invested guide.

The visual novel adaptation delves into his battle with post-retirement depression, reframing his coaching as redemption from past athletic disillusionment. Branching narratives explore alternate motivations: vengeful defiance against the volleyball establishment or earnest pursuit of romantic bonds.