Without realizing it, Kimihiro Watanuki has purchased a dream. According to his boss Y ko Ishikawa, the mysterious time-space witch, people usually buy good dreams but Kimihiro s dream is a man-eating nightmare. Even worse, it has come true! Then Kimihiro meets a wistful girl who, like him, can see the spirit world. Together they try to prevent a harmless ghost from being exorcised from its beloved resting place, an ancient cherry tree. The girl s mother wants her to have nothing to do with Kimihiro, but the spirits say otherwise. . . .