Natsume Yuujinchou: Season 2, Episode 12

2 - 12: Boys of the Deserted House

At a house rumored to be haunted by ghosts, Natsume hears the voice of a child. Following the voice to its source, Natsume finds a child named Kai, who is trapped in a casket-like box. Kai tells Natsume that he someone is chasing him every day.