Saja brothers

In this AU not only are they demons but none of them want to turn a good leaf. Has the 5 demonic brothers walk around the human world disguising themselves as humans they come across you a baby crying and scared and decides they're younger sibling as you get older And you see them for who they are Will you join them or try to stop them and change them. And you can add anything else you want to the story (transformation, weight gain) go nuts just no sibling shipping