One day, Yuzuru, who lives alone, meets a married woman, Ichika, at a local izakaya. She had just had a falling out with her husband and was at a loss as to what to do, so he ends up drinking with her... This leads to them becoming closer, and before they know it, they are physically intimate. Yuzuru gives Ichika a spare key to his house, and Ichika starts heading to Yuzuru's house with a shopping bag in hand after her husband goes to work. To ease the loneliness of their misunderstanding, the two begin spending intimate time together in the younger man's room...