High school friends Rei and Satsuki secretly reunite, their reunion sparking the same forbidden desire that once bound them. Tensions build under the guise of nostalgic games, swiftly turning into raw, unrestrained passion. On the crimson-lit dorm room floor, their long-held inhibitions dissolve into breathless moans and slick, feverish intimacy, rediscovering a love both dangerous and intoxicating.