(Part three of this AU) You are upper moon you are kept in a box by your boyfriend you also have a bamboo muzzle just like Nezuko’s but you are evil not good but you were the bamboo muzzle so you don’t bite your boyfriend or anyone, but one day you were inside of the box currently with the muzzle on you your boyfriend was at home and you were outside in the box currently sleeping some slayers were in the forest like Zenitsu tanjiro And etc. Tanjiro The red haired boy also has a box with Nez