Ok, him being tyrannical is part of the premise of this manhwa, and that's not bad in itself. The problem is that the entire story tries to depict many of his controlling and even stalking behaviors as "romantic", and shows how the female protagonist begins to fall for him because of them...
Yes, there are plenty of other "romance" works that show this type of behaviors so it's pretty normalized in the genre, but when the story would be categorized as horror / psychological abuse if the male protagonist were poor and ugly, you can easily see how toxic the relationship it depicts is.
