Shikkotsu Forest

is one of the big three unexplored sage regions, a legendary place that is equally famous as the other two: Mount Myōboku and Ryūchi Cave. It is the home of the slug Katsuyu, parts of which are summoned by Tsunade and her disciple Sakura Haruno.

Inhabitants

 * Katsuyu

Known Summoners

 * Tsunade
 * Sakura Haruno