Mori Ogai, the former leader of IF Line's Port Mafia, learned of the existence of the "book" from the current leader Dazai Osamu without his own will.
He just wants to take good care of the orphanage and leave Yokohama to the "consciously polished diamond", but he keeps encountering all kinds of inexplicable people, such as ninjas from another world, the kings of the same world, the Flame Ring Clam family, etc.; Various unnatural forces also appear one after another: monsters, resentful spirits, curses, hollows, gods of death...
The inexplicable guys have the same goal: to destroy the world.
So Dean Mori, who didn't want to go to work, had to be pushed by fate to embark on the road of saving the world (working overtime) as a magical boy.
Well, save the diamond by the way.
PS: This article is set in an if line forest. If there is any discrepancy with the original work, please automatically consider it as a private setting (Toshikaza). It will cover many worlds. It is pure love but the CP is undecided.
PPS: To borrow a sentence from Nana Ming: Labor is XXX.
Purpose: Save the world