A man with a troubled past ends up as a teacher in Kivotos. Oh well, it's not the toughest thing he's had to do. (A retelling of the story with a different Sensei) Anything you recognize, I don't own. Got it?

After having dealt with the blue reverberation ensemble, Roland failed to get his revenge on Angela, seemingly embracing his end, that is... until he finds himself in a new world, where he was told he's the teacher for a bunch of girls with guns... and halos! Will he fall back to his old ways... or maybe... he'll move on and finally find a new life within this city? It's a journey of growth, after all... "That's that... and this is this." All rights for Blue Archive belong to Nexon. All rights for Library of Ruina belong to Project Moon.

During the epoch of the coronation of the new One-Eyed King, the Reaper must forfeit his life to bring the prophecy of Death's end into fruition, and bequeath his misbegotten crown to its true heir. Therein that moment, the Ghoul Messiah is born, to herald a new world where coexistence could become a possibility. For Arima Kishou, his role was finalized. Until it wasn't.