Mao tells her husband Ryosuke that he's been feeling a bit low on energy lately, but that it's because he's busy. Even though he says that, Mao is hurt and thinks that maybe he's not attractive to her. When Ryosuke's subordinate Murata visits the couple's house, he notices that the couple is having trouble with a lack of sex and seduces Mao. Mao refuses, but Murata approaches her forcefully and wildly...