The title and chapter 1 are a bit misleading considering it's 45 chapters in and the main event still hasn't happened, but other than that it's a pretty good drama. Just don't go in with the expectation that this is about the mc starting over as royalty in a different country.
I usually don't mind reading trashy Isekai but this one is genuinely bad... the story is all over the place, it's just like "oh, i guess this is happening now". Nothing is explained, it feels like an outline for a revenge isekai that never got filled in.