Sixteen years after their last meeting, Makoto reunites with his aunt Naomi, who has recently moved into the neighborhood. While she's busy cleaning her room, Makoto finds himself secretly watching her, aroused by her unchanged beauty and seductive charm. Naomi, whose relationship with her husband has grown cold, deliberately teases Makoto by flashing her thighs and letting her bra peek out from her cleavage—her lewd gestures steadily fueling his desire. With her sultry demeanor, she begins to seduce him shamelessly.