Eko Eko Azaraku

A high school girl, Kuroi Misa, is invited to a high class Japanese style hotel by the owner. What he is worrying about is that the customers continuously killed themselves by hanging themselves in the garden. Misa is invited to dispel the spirits in the garden. There used to be an execution ground there. Misa proposes to use black magic to dispel the spirits, and she demands 10 million yen.
(Source: Anime News Network)