Elodie and Laetitia live in close love and dream of having a child. As Elodie discovers that she cannot get pregnant because of a health problem and encounters financial troubles, they decide to take a roommate.
Kang Eun-kyung, who has come for her teaching practicum, encounters members of the Black Sky black magic club, who are ranked first in the national mock exams. She discovers that there is a witch behind the girls. To retrieve the souls that the witch has
