It's basically incest, a manhwa about Blondie twins and one of them being a devil or something that loves his "sister", so they end up getting married and shit, but the twin brother who's a devil killed most people in the castle so only him and his wife are left now etc. They also had a younger brother with black hair who turned out to not be their real brother
Pleeeeaaaase I need this quickly,
It's basically incest, a manhwa about Blondie twins and one of them being a devil or something that loves his "sister", so they end up getting married and shit, but the twin brother who's a devil killed most people in the castle so only him and his wife are left now etc.
They also had a younger brother with black hair who turned out to not be their real brother