A live-action adaptation of the popular doujin group mon-petit's highly talked-about work "Until Summer Ends"! Minami Riona plays Nanao Riona, who offers her body to a filthy teacher in order to protect her boyfriend, the ace of the baseball team. Though reluctant at first, the girl gradually succumbs to pleasure. Don't miss the sight of her becoming the vile teacher's live sex toy, climaxing over and over again and getting creampied!