Clarify that I do not accuse you of anything, I do not know your game and much less the original of which you speak.
But looking at the page of your game, it seems to me that it is a fangame based on the game WOW from Blizzard company.
I doubt very much that you have been able to get a response from Blizzard company for an NSFW game with their characters.
When you claim that you have all the permissions, it really raises a red flag.
EDIT: I'm not accusing you, I just find it hard to believe that a company like blizzard would license an IP like WOW for an NSFW game.