High school student Kenji Sato is failing P.E. and barely scraping by in Applied Thaumaturgy, but his real challenge is his part-time job: being the keeper of Fumo, a powerful, four-eyed demon sealed into the form of a disgruntled, floating fluffball. The seal is simple—an ancient Talisman—but there’s a massive logistical problem: it keeps falling off!

​Kenji’s only recourse is to secure the sacred seal with a generous application of heavy-duty, industrial packing tape. It’s effective, but it’s an embarrassing testament to his supernatural struggles.

​If the seal fails, Fumo will destroy the world. If he doesn't strategically use Fumo’s contained demonic power, the shadow will succeed. Kenji must now navigate algebra class, protect his crush, and find a way to patch a tear in reality—all before the demon sticker gives way.