His wife Keiko is hospitalized. Keiko's mother, Sayuri, visits Kenichi, who is forced to live alone. Kenichi gives thanks to Sayuri who skillfully cleans the house that has become dirty due to Kenichi living alone, but an incident occurs. Sayuri finds a pile of tissues in Kenichi's room. Sayuri instantly realizes what it is, but she realizes that her daughter's hospitalization is causing inconvenience to her son-in-law...