Retired Master Saves the Curse and Returns to the World

Fujimaru Ritsuka, who returned to Japan to continue his studies due to health reasons, encountered a big crisis! He is haunted by an unknown monster! Fujimaru Ritsuka, who pretended not to notice, was finally taken to a religious academy by a strange white-haired man wearing an eye patch. All in all, it's probably a peaceful life, right? He wants to... As a result, one day, the strange white-haired man was sealed... Purpose: Gentle people deserve to be treated kindly