Ennoshita no Chikara Mocha: Maou Toubatsu Shitara Wakagaetta node, Gakuen de Kage kara Support Shimasu
縁の下のチカラモチャー ～魔王討伐したら若返ったので、学園で陰からサポートします～
A warrior monk named Sakuya helps the Hero's party defeat the Demon Lord by sealing the powerful demon Ashtarte into a stone tablet. In the process, Sakuya is caught in the Demon King's final curse and trapped in the "Corridor of Death." The manga adaptation of a slapstick school fantasy follows this event.
