When a mystery letter arrives on the day they are to be evicted, Elizabeth and her father can't believe their good fortune to discover they have acquired Echoville Manor, a sprawling 37-room mansion. When Elizabeth arrives, she discovers that the mansion is home to the world's prettiest spirit, Ghoster, who has been locked behind a mirrored prison there for fifty years. They must work together to discover the secrets of Echoville in order to release Ghoster before the evil Yuto snatches her soul in his pursuit for immortality.