The job of exorcists is to send yokai living in the mundane world for whatever reason back to the Underworld where they typically live. In order to repay his debt of one million "en" to master of the Mononokean Abeno Haruitsuki, Ashiya Hanae works as his employee, assisting him with exorcisms. One day, when the two of them return to the Mononokean after finishing a job, they…