Mari, who works for Shihori, a female president who owns almost all of the buildings visible from her window, is troubled by her husband's infidelity. One day, Mari is invited to Shihori's home, where she witnesses an unbelievable sight. In a large room, Shihori plays with a caretaker clad in briefs like a toy... Mari has an ecstatic look on her face as Shihori enjoys taking and replacing his cock. Then, as Mari gradually awakens as a slut, her husband is brought in with his hands and feet tied...