In the end of story you mean the end of the novel?
That's so sad :(
I thought we'd have a redemption moment with the older brother later on
Nah, he’s a weirdo he doesn’t deserve a redemption, he’s an asshole, stupid and a creep, and he also has some weird obsessive romantic-ey feelings for Penelope so I say that’s his karma and good riddance. His entire character disturbs me
what happens to Derrick the old bro??
He is brainwashed by Yvone to ruin Penelope. There are few reason why he is an easy target to brainwashed. First he felt guilty about binging Yvone to the festival when she went missing. He lost his grip on her when the firework star and crowd are moving and the're unable to find her (latter it is shown that the Leila take Yvone immediately after she is separated form Derdick so there is no way they can do to find her) and second it is because He FRAKING FALL IN LOVE ROMANTICALLY WITH PENELOPE!!. When all of the main conflict ended Penelope go back to the dukedom to say final goodbye and Derdick who has been stab by Yvone has the balls to confes (or tried I forgot) and told Penelope to stay for him (Yeah right evermore reason to go). In the end Penelope reject him badassly and satisfyingly. He never really in Penelope life let alone her child. If I'm not wrong Reinald is the one that success the family (I read novel MTL so it's not really accurate). He is a stranger to Penelope and her newfound family.
WTF
I feel so disgusted, dude really went the yucky step bro route
Thanks for explaining clearly, I understand why there's absolutely no hope for him now
If you feel mad about Renald, don't .....
He was brainwash. Every game character is brainwash by Yvon with those power of ancient leila that's why in the game every male lead love her. Fortunately Renald and the Duke manage to escape form the brainwash and still care for Penelope. Derdick in the other hand completely brainwash by Yvon. In the end of the story only Renald and the Duke that has relationship with Penelope and her child.