After ruling over legions of demons and waging endless wars, the Demon King finally retired. His new goal? A quiet, ordinary life in modern Japan. Unfortunately, “ordinary” doesn’t exist when angels, dragons, and nosy classmates keep showing up at your doorstep. For a being who once conquered worlds, surviving high school might be his toughest battle yet. A crossover fanfic combining (Gabriel DropOut, Miss Kobayashi’s Dragon Maid, Saekano: How to Raise a Boring Girlfriend and more….) told through the eyes of a retired Demon King just trying to live normally.