I didn't expect that when opening a home massage shop, I would encounter such a thing... Karin, a wife who was once a homemaker, had to return to being a massage therapist after her husband was abruptly fired. But the one targeting her is a lewd neighbor. He pretends to be a client, taking advantage of Karin's dissatisfaction with her husband who 'finishes quickly,' and he dives in to take over her body. With skills and a 'manhood' far superior to her husband's, Karin gradually falls from grace...