Kokuyo

Father of [Kohaku](https://anilist.co/character/124143/Kohaku) and [Ruri](https://anilist.co/character/143272/Ruri). He was the village chief of Ishigami Village at the time of [Senku](https://anilist.co/character/124142/Senkuu-Ishigami)'s reawakening.