
Whenever i read this manhwa. I always sees people hating on the twins. I do know everyone has their own opinion so heres mine.
The twins died in their teen years. So they're not entirely mature. They reincarnated as a illegitimate children of the emperor which set a stereotypes that illegitimate children is a disgrace. Which is why they wanted to relate to the scar faced guy. (Bad move but understandable. You tend to lean more to people relateable to you.)
They're heavily abused by their mother. Neglected by the servants in the palace so, they have a hard time believing that the emperor cares about them. The twins have anxiety and depression issues which made them harder to get used to people caring about them. You know this problem tends to happen to people nowadays. Parents loves you but never said it to you makes you wonder if they even love you to begin with.
Can be his adopted child or something? ;-;