Twisted Obsession of His Highness
It's just a prolog and there are already people giving bad rating like wth.If you don't like this kind of story don't even read it.I really hate this kind of people who judge thing before even know further about it.And there are some people have step sibling so they call them with tittle like 'brother,sister' so what's wrong with that ? Even if they are not blood related,yeah they are still family but it's not wrong to have deep feeling with your own step family.Please appreciate the author who has been doing well to make this story and even the art.Also for the translation.Stop being toxic and go if you don't like this story.
Happy End wa Goisshoni