Juggling work, raising her daughter, and taking care of the house, every day is a struggle just to survive for wife and mother, Yuri. Despite this, the only thing her husband Yuto does to help out is pick their daughter up from the nursery. Although Yuri isn't entirely happy with the status quo, they live a relatively happy life together. But one day, she discovers a familiar sweet scent and a long, black hair on her husband's shirt when doing the laundry. Suspicious, she takes a peek at her husband's texts and finds an intimate conversation between him and their daughter's favorite homeroom teacher at the nursery, Miss Moe!
Asuka had always dreamed of a romantic proposal, but when the time came, all she got from her live-in boyfriend of seven years, Yuta, was a casual "How about we get married?" over dinner at their local bar. He didn't even put down his phone or look her in the eyes! She goes off on him (in her mind) but then reminds herself to be realistic and accepts his proposal. As the wedding approaches, she finds an open box of condoms while cleaning one day... and notices that only one is left, even though she can't remember using any of them with Yuta. That's all the proof she needs: the bastard is cheating on her!!
Mami is in the seventh year of her marriage with Haruki, and three years ago, she gave birth to their son Harunosuke. She thought they had a happy future ahead of them. But boy was she wrong..! Present day. She's fed up with her husband's lack of manners at home. Cutting the cheese during meals, walking around their home naked, you name it! She's worried about him being a bad influence on their son, not that he cares. In fact, her nagging only brings him stress. One day, when doing the laundry, something falls from Haruki's pants' pocket... A love hotel membership card, with recent dates written on it, no less...! Haruki better watch out, because Mami is out for revenge!