The orphan Himari Momochi
receives a will detailing her inheritance on her 16th birthday. She goes to the Momochi family estate, which turns out to be on the border between the real world and the spirit world. There, she's attacked by a demon, but is saved by a mysterious, shapeshifting man named Aoi.
Momochi Himari after being an orphan inherited a house out of nowhere. She decided to occupy that house despite of the warnings she received. According to the folks the House of Momochi is haunted. There she met three guys who live in the house, Aoi, Yukari and Ise. Then she discovered something unusual about them. What will happen to Himari's peaceful life when she decided to stay there? Find out.