spoiler-
he allies with the 'real daughter' because he is being manipulated. He dies at the end protecting Penelope though I think. I can't remember- here's the spoilers link- https://forum.novelupdates.com/threads/death-is-the-only-ending-for-the-villain.97486/page-6
I heard he become too obsess with her and tried to do something to her so so i just got spoiled too so idk what exactly but the obsess thingy im sure of it
Spoiler ^-^
So that knight guy will only become 99% and stop there. It was explained rhat it wasn't true love, more like obsessive love. She used him and he "liked being used". And some other complicated major spoiler stuff happened but i wont explain that hahaah it's too long... but you can read the novel it's already fully translated ^-^
So that's mean 'real daughter' who got 100% love from almost all male characters actually gor obsessive love and not true love
So ppl r saying that the crown price is the male lead so what happens to the slave guy who became a knight?? Doesn't he have the highest percentage rn??