There s a new girl in school-Koyuki Nonomiya, a third-year transfer student with a reputation for debauchery. Bearing a curse from the demon Gremory, a rival of Zepar, she wants in on all the fun, and won t take no for an answer! Faced with an experienced and aggressive partner, Souta finds himself increasingly pulled away from the other girls. Can he deny the pleasures set before him?