Sagara-san, a single mother who moved next to Kohinata-san, a housewife who is a mother of one child. When they were together at the cleaning event of the neighborhood association, they were serious and enthusiastic, but the abandoned children's rag shoes were called "remains", or somehow a mysterious person?!..

Note: The series originally ended in 4 chapters in the magazine, but is relaunched with the same title (as season 2) in Flowers '20 August issue on June 27 (and ended again in 3 chapters in October issue on August 28).