Natsume's Book of Friends Vol. 4 (manga)

Takashi's quiet afternoon in the forest is disrupted when an angry spirit tries to possess him. He manages to dodge the spiritual attack, but he can't as easily avoid the yokai's pleas for help. Now he's tracking down an escaped evil spirit that threatens the life of the forest. But he's still learning that yokai never tell the whole truth, and the secrets spirits keep spell trouble for him!