The "God of Demons," Huacheng Rika, a Sakakutou wielder who once saved humanity from the otherworldly creatures known as "Mist Wraiths," awakens after being sealed for eleven years inside the body of a Mist Wraith girl who was raised by humans.
This time, he plans to enroll at the Sakakutou Academy and help the students reach greater heights.
But to Rika, something seems more important than educating the students...
"Now that I’ve turned into a little girl, obviously I have to go enjoy the girls’ bathhouse!"
"That’s right. If we get into the bath, I can study your body to my heart’s content~"
Of course, things would have gone smoothly if it weren’t for his yandere roommate, who kept staring at him all day long...