House of Shifters and Smoke by Meg Xuemei X

Killian
Soon, I’ll have to marry the most powerful queen and rule two kingdoms.
But all I want is Barbie, the new girl in my house and the only thing I can’t have.
If I take her for my own, she’ll be murdered.
I know I should stay away from her, but I no longer can, even if the kingdoms collapse and the world burns as a consequence.
I might be the villain in the story, but without her, there’s no meaning to my brutal, miserable existence.
So, I start to push her to the breaking point so she can survive the bride trials and rise above it all.
Only I don’t expect it to hurt so much to see my rivals, the other heirs, swoop in to try to make her theirs.