Suzu was married to a kind husband and lived a happy life. But one day, her husband's father, who she hadn't heard from in a while, came to visit. Her husband resented his father for abandoning his mother and causing him so much trouble. However, with the kind encouragement of the mother-in-law, who had nowhere to go, she decided to let him stay with her for a week. However, that was the beginning of her mistake...