A chance encounter on the street led our protagonist to meet the sister of a girl he had met once before—the voluptuous Sakurai-chan. Her older sister (who we assume has similar features) boasts an extreme level of cleavage that teases men and wears micro-miniskirts so short they could be considered indecent...for a female student! Our perverted main character finds himself at her mercy after being falsely accused of lewd behavior. To prove his innocence, she brings him to a love hotel where he undergoes a series of tests involving dirty talk, foot play, piesling, and ultimately sex. Overwhelmed by her relentless erotic assault, he can't help but cum multiple times despite trying to hold back. In desperation, she begs him to release all his disgusting seed inside her tight body: "Give it all up, you filthy bastard!"