Rei, a classmate of Haruka's from her school days, has come to Tokyo for sightseeing and is enthusiastically talking to Haruka about the excitement of seeing a men's strip show for the first time the previous night. Just then, Haruka is planning to go on a trip, and her son Makoto returns home, replacing her. Rei's eyes light up at Makoto's young, muscular body, toned through sports, and, taking advantage of Haruka's absence, she asks Makoto to dance in a tiny bikini she's brought home as a souvenir. Seeing Rei's intense gaze, Makoto reluctantly changes into the clothes and begins to dance, but... Rei's intense gaze as she stares intently at his crotch and the unusual situation make Makoto...