Trolling Creator: A lot of chain yanking, considering the series did essentially 180 from where it had stood at the end of Immortal Regis. The author likes to drop hints and clues in every which direction, but never giving a clear answer; this is partially why the manhwa is so confusing for the first 20 or so chapters.
Yank the Dog's Chain: So far the the Dragon Festival Side story is looking like it with the story ends with Yuan getting her desire of dancing with Xix fulfilled and the two of them seeing a Dragon spirit that is supposed to grant the wish she made, which was for happiness for everyone. A pretty happy ending... until it is revealed that the last couple to see a dragon and dance was Nex and Serin.
Ninurta made it in time to call for his mother's execution to be stopped. She ends up dying in front of him.