Oikawa Naoki, a new prison officer, explores the issues of the death penalty through his friendship with Watase Mitsuru, an inmate on death row. Side-story of the award winning manga [Mori no Asagao](https://mangadex.org/title/fae012cb-2824-4809-a241-299809d50241/mori-no-asagao-shinjin-keimukan-to-aru-shikeishuu-no-monogatari).