Wife: Ichiko Aihara. Husband: Otoya Aihara. Married for seven years, they get along well, but sexless and without children, they agree to see other people. Otoya has an affair with Mitsuki, and Ichiko is aware of it. Looking at Otoya in a state of bliss with Mitsuki, Ichiko begins to change, too… Peko Watanabe tells a story of lies and truth—whether or not you ever want to get married, the real life of this thirty-something couple might give you some second thoughts about that institution we call marriage!
The system that once did wonders for their married life has started sending shockwaves through it, instead. While Otoya sees signs that his relationship with girlfriend Mitsuki may be doomed, Ichiko has her first encounter with a male escort. As the lies pile one on top of the other and the truth threatens to reveal itself…that’s when tragedy strikes. Experience the manga phenomena that’s taking the media world by storm as it questions the very institution of marriage!