Junji Inagawa no Jukai (2005)

Junji Inagawa drafted the original story for this horror drama. Tatsuhiko and his sister go to the Sea of Trees in Fuji to find out if their father is alive or dead after he disappears, leaving a note saying that he is going to the Sea of Trees. However, they get lost and enter the "cursed world" where evil spirits are stirring.