Photograph found in public housing. After the death of the resident man, it remained there for more than one and a half years.

The number of rooms where relics that cannot be disposed of are left unattended is increasing in various places. In Osaka Prefecture, the number of prefectural housing units is decreasing year by year due to aging, while number of elderly and households living alone is increasing. The government calls these rooms "single-person death houses" and creates a special file to deal with them.