This manga is about a high school boy named Sanada Akihito who through no fault of his own is targeted by a wandering spirit. When his long time friend Sasano Itsuki, who is also a priestess of Oosazaki-No-Mikoto the goddess of sparrows, tries to exercise the ghost it instead invades the body of Hayakawa Suzu who was in the room trying to retrieve her cell phone. Now with Momo in control of her body it would seem the only way to exercise her would be for Akihito to have sex with her! It turns out that once isn't enough and now he finds himself lead down a path that could mean the end of the world! After having sex with many of the other girls around him including the goddess herself it seems like nothing can save the world. In the end he finally consummates his love with Suzu allowing Momo to pass onto heaven and preventing the apocalypse all at the same time!