I picked up the demon and decided to raise her

Life should have been peaceful at first, but then she met a red-eyed girl who called herself Lucifer, and things started to get weird.
There are a lot of strange guys gradually in the store, the bird man with a ring fluorescent lamp on his head, the useless wood lying on the sword floating around too lazy to walk, and the big sister Loli who blew up his room again. .....
Well, it's pretty normal everyday.