A nerd must fight powerful spirits and aliens all vying for the secret power of his family jewel, so who better to fight alongside him than his high school crush and a spirit granny?! Momo Ayase and Okarun are on opposite sides of the paranormal spectrum regarding what theyll believe in and what they wont. Their quest to prove each other wrong leads them down a path of secret crushes and paranormal battles theyll have to participate in to believe! To avoid being late for school on Vamolas first day, Momo takes the mysterious kaiju girl on a shortcut through some off-limits ruins. But the protection spell they perform doesnt work, and she runs into the slit-mouthed woman who resides there! The two narrowly escape, and its only later that Momo realizes the real danger they were in.

So why is it that for Momos own safety, Seiko is now forbidding her from leaving her room after10 p.m. for the next week?!