I'm confused

Gurl i got the same questions as you and i think that's exactly what they want us to be thinking before they reveal the answers

Lmao i literally was like "what the actual fuck" after every scene. I forgot to ask also, what's with Kai's saying that the FL was his patron in his dream when the ogFL was always his patron? Nu-huh, i'm so confused i don't even know what's going on anymore lmao

This is my guess. MC's memory of the story seems to differ from every characters' dreams of what had happened. We don't know if what MC remembers is true of not since she read it from a novel. The true mage, I believe, had always been Kai which is something MC confirmed and confronted Ray about. There was a whole chapter of Mc and Ray talking about how she doesn't regret having found him first even if he wasn't the person she thought he was or who she was trying to find in the beginning. However, one thing is true is that they both originally have red eyes. I think the blue eyes were just magic Kai used to hide his eye color, but it's a little weird since it should be more like a purple. Ray had once tried hiding his eye color purple, but his "curse" or "blessings" were too strong in which no matter how hard he tried to make them blue, red would come out and make his eyes purple.

Maybe this was done on purpose or it was an accident. We'll never know, but if it was intentionally done, we can say that from what we've seen, Ray seems to be more blessed than Kai. His magical ability compared to Kai has been more exceptional...(From what we've seen).

The vivid dreams that Curtis, Kai and possibly Marquis Defron are getting are probably dreams of what had happened either in their past lives or in an alternative universe. I think they might have regressed back in time because something had either happened to the ogYurina or Defron had gained access to some type of magic to turn back time to get his revenge. Maybe the story MC knows is what could have happened in the future if she didn't reincarnate. Defron would have found Kai first and used to him exact his revenge on Yurina so that his daughter Lydia could become empress. However, it isn't happening because MC is not Yurina in the first place, and she is not in love with Curtis but with Ray. This makes more sense because MC isn't even engaged or lovers with Curtis, so if Defron didn't have any other motived like exacting his revenge, he wouldn't be trying to harm her since the crown prince's lover spot is still open for his daughter.

Okay i get it, it's possible to be this way but there's only one catch. Why would Kai hide his eye colour from being red when the MC already made it public with Ray? Ray was hiding his when it was still a secret that he was existing and that there is someone out in the world with red eyes, he was still a child then. Kai wouldn't have had a reason to hide his eyes, also if he wanted to hide them why would he show them at the party where the 4 of them met for the very first time? It doesn't make sense.

The guy was probably also going undercover back then. Honestly, I don't really remember when his eyes appeared to be blue lol. One thing for sure is that Defron was still hiding the fact they also had Beatus, so he could be either following orders or having another motive himself once he heard Yurina had found another Beatus like him when in his dreams he was the only one he knew that was one.

That scene was before the party, in the dark room. But i don't remember the chapter sadly. Honestly, idk. I hope they explain everything cuz i have too many unanswered questions.