Hina, who loves Mofumofu, is a female college student who can see the non-human thing "Ayakashi". One day she was chased by a youkai and she got lost in a mysterious forest, but she is helped by the finest black fox. The black fox guides Hina to a magnificent mansion, but there is also a youkai! Moreover, the black fox suddenly becomes handsome and says, "Become my Hanayome." He wants Hina to pretend to be Yome in order to silence her noisy surroundings. Hina, who was told that she could go home if she accepted the conditions, agreed, but she was supposed to be pretending, however her lips were robbed and taken off !