(狭さ霧ぎり山やま Sagiri Yama?) is a massive mountain in a generally unpopulated area. Near the top, the air is exceedingly thin, making breathing difficult.
Story of the Sagiri Mountain
Sakonji Urokodaki uses the mountain to teach children who wish to be demon slayers. Sakonji puts his students to the test by having them slice through a rock with a katana. They will be asked to compete in the final round if they pass. Children that have passed the ultimate selection are known as Demon Slayers. Those who died in Final Selection return to the mountain as ghosts.
Inhabitants of the Sagiri Mountain
- Sakonji Urokodaki
- Tanjiro Kamado (formerly)
- Nezuko Kamado (formerly)
- Giyu Tomioka (formerly)
- 11 unnamed students