Single man Fumita's new neighbor is Reiko, a beautiful and well-endowed married woman. She's stunning, and to his surprise, she doesn't wear a bra. Living next door to her, Fumita finds himself excited and lost in lewd fantasies. His eyes are constantly drawn to her, his imagination spiraling out of control. As their neighborly relationship develops, a filthy, seductive atmosphere grows between them—awaiting an erotic turn of events!