Yes he is his Maternal Uncle. Also In the webtoon he made an appearance in season 2. Fighting together with gamin.
You may be right. I guess it's fine either way since it is only a 10 episode drama. You made me curious and now I am considering reading the webtoon. :p
The ending was so good that I kept falling asleep. The drama was unnecessarily long. They could have wrapped it up in 10 - 12 episodes. They just got lucky at the end coz of the king because their plans were super dumb.
But this show is making me really anxious. I keep feeling like some main character will die. I really hope not.