Kimihiro Watanuki is haunted by visions of ghosts and spirits. He seeks help from a mysterious woman named Yuko, who claims she can help. However, Watanuki must work for Yuko in order to pay for her aid. Soon Watanuki finds himself employed in Yuko's shop where he sees things and meets customers that are stranger than anything he could have ever imagined! Watanuki is Yuko's unwilling assistant, but even he is compelled by the fascinating adventures he's having since he started working for the 'space-time witch.'