Since her husband went on a business trip alone, Taoko has been living a lonely life. One day, her daughter and son-in-law came to visit. Initially, Koji, the son-in-law, was somewhat reserved, but as time passed, Taoko began to enjoy these lively and happy days. However, one day when Koji fell ill, Taoko started taking care of him. After experiencing his mother-in-law's kindness, Koji began to see her as a woman, and eventually, they entered into a forbidden relationship. Living under the same roof, their sense of taboo gradually turned into pleasure…
