Not going to do that, everyone in the game is 18+, and I will keep it like that. And I don't like the kind of content you propose.
False, there are backgrounds, scenes and sprites I can use. It will make my life easier. And how do you think the developer will sue me when he used other people's copyrighted franchise for his own game?
Of course, if the developer does not want me to use his assets, he should tell me. I asked him on Discord, and he seemed fine with it.
This game already has sprites for Hermione, Pansy, Luna, Ginny, Molly and McGonagall. I don't care for the other people they put in it, but there is some content I can build on.