I think that the emperor order Nora to investigate Shuli's death and from what I've read before people who read the novel said that in the original timeline Nora was trying hard to figure out who's Shuli's murderer was and I believe he's the one that finds out.... @Mapleowo
The thing scaring me is that Mister Kayden will decide to leave our boi for his sake. Like live him under the protection of others while he goes off to get better and take care of loose ends....
Not quite sure about the details, but this is what I found on reddit https://www.reddit.com/r/manga/comments/kzvw5o/the_breaker_season_3_release_news/
@NotLazy
This scene is making me want to reread The Breaker also I checked for the 3rd season release and the author twitted last month that they hope to release it by the later half of this year!