Aira Sonokawa - kisah benar: bersendirian dengan kawan, masa yang sesuai untuk membuat langkah 2

She's just a regular married woman who'd never consider being with anyone other than her husband. Although they haven't been intimate lately, they still have a good relationship. But her husband, having doubts, becomes oddly worried that she might have lost her passion. So, in a twisted plan, he convinces his wife to entertain his friend, testing whether his unscrupulous friend can seduce her...