This story takes place after sanemi and giyuu succumb to theur demon slayer marks after turning 25, sanemi was reborn in a fantasy world as a human prince! he still has all the memories of his past life and knows that he was reborn...you can choose to ship sanemi with kanae or giyuu and choose what they are reborn as! your options are: Royal, peasant, dragon, elf, mer person, siren, fairy, pixie, furrens( a furrin is a fuzzy animal and human hybrid), or realta(realta is a person with magic!)