After five years of marriage, Nao was dissatisfied with her husband, Shuji, who was older than him, and the couple's activities decreased. Nao waits to seduce him, but on that day, he returns home muddy while being held by his subordinate Kusaka. Kusaka, who was secretly excited by her defenseless appearance, pushed her down without worrying that her boss, Shuji, was sleeping next to her. However, it was Shuji, who had a distorted desire to "see his wife being raped by another person," and arranged for Nao to be taken down.