Chihiro has been great ever since she left the spirit world when she was ten, but five years later she loses her parents in an earthquake! A year later when she is sixteen she decides to go along with a dare to spend a night in the abandoned Tunnel/building with her new best friend Miku! But she realizes too late that it's the same entrance to the Spirit world, and now she's stuck in the Spirit world with Miku, but not everything is the same as it was when she was ten. What will happen to Chihiro and Miku, will they return home?