*he started of as green
correction, I just read it till 14 LMAO (≧∀≦)
Hes mentally unstable because of the trauma of the late empress.
I believe that at some point in her past, the 2nd prince truly loved her- but his obssession to the throne and the the trauma that his mom made him go insane
indeed T___T, in 1st life it looks ike he's becoming mentally unstable, maybe the white haired gashlighting him to be dependant so he can't think straight, but seeing your comment kind of sad to him in both timelines, like he can't get a spark of happiness, maybe in second life he will get it somehow, most of this type of manhwas has some redemption even tho it mostly only for the ML ╮(￣▽￣)╭
I'm still on 13th chapters here, normally I hate someone like second prince here, but somehow after going back, I can't help but feeling pity to him, somehow.....
the best ending for him is he let go of his title as second prince and choose to be an artist, that way he can be healthier than ever, no comment for the 1st prince tho, hestar as green, then red, by chapter 13 somehow he became black little by little (≧∀≦)