Lmao, the fateful encounters were gone with just a simple phrase and it was beautiful. :")
IMO he lost his interest in Yuriel because his plans, intentions, and even possible situations related to both were already foreseen by our MC, so now he's conscious of Yuriel in a different way. Maybe before this encounter with his sister, Yuriel was a possible pawn to have fun with against our MC, or with enough luck maybe Yuriel could be transformed onto an actual weapon capable of controlling, harming, or even destroying the Princess, but after facing her reaction in this chapter, is obvious that our MC will no longer give her any chance.
Also by asking if he already fell for Yuriel, it makes him aware of the situation he's in; maybe he tried to play with Yuriel, but he's opening the chance to be played by someone's hands (maybe Yuriel's, his sister's or both). Idk if the Emperor won't longer encounter Yuriel at some point, but even if he does, I'm pretty sure his walls are pretty high right now. Maybe he'll try to use her as a way to harm the Princess, but she no longer has the chance to take anything from him and that's why that route no longer exists.
I also want to know what are the Emperor's feelings towards his sister; even if the Princess has always been used by him, idk if he actually thinks of her as a threat or not.
Ps. Tbh I'd love if Yuriel could stay imprisoned until the end of the game, that way she'd simply lose and our MC would stay alive without problems. And lolol, she was finally punished, yay!
Ps.2. I've missed Nadricka baby so much. :")
Ps.3. I love how in every chapter we can always read at least 1 comment asking for our MC to kill that b1tch. Let's not lose this beautiful custom, lmao.