Natsumi Wakanishi, a local TV announcer, is engaged to a colleague, but when the station's reputation falters, she receives an offer to join a freelance organization. The president of the organization, Oki, is a powerful and influential man, and when he gets drunk, Natsumi can't resist the temptation to have sex with him. With his adult-flavored sexual techniques, she reaches orgasm several times. Attracted to her husband's dependable charm, which he does not possess, she has repeated middle-out sex every time they meet. She performs oral sex on him and demands his sperm. Even though she knows it's wrong, her female instincts want to get pregnant. The world is always about survival of the fittest.