A mediocre novel. In short, it tells the story of a protagonist who transmigrates into the teacher of the demon king of one of the lowest floors, who is the MC of the game, and wants to raise her to get the ending of her uniting and becoming the conqueror. Truthfully, there are lots of problems in the story. The protagonist has no reason to raise her except that he has some delusion he would vet back home after doing this, the side characters are totally irrelevant except for fulfilling... more>> their 1D roles, but most of all, the romance is truly awful. Read this if you have nothing better to do. <<less