Forest of Holy Spirits
Yoh and the others stop by a ghost town, place of rest of some bored spirits.
Aired 06/02/2002EP 31 - Forest of Holy Spirits

2001
Shaman King
Shamans possess mysterious powers that allow them to commune with gods, spirits, and even the dead…and Manta Oyamada's about to learn all about them, because his class just welcomed a new transfer student: Yoh Asakura, a boy from way off in Izumo…and a shaman in training!
(Source: Kodansha USA)