
Actually I wonder why you guys are on Nathaniel's side when it's totally clear that he's a bad guy.
Also please remember what era is it in the story, the king's not cheating nor abandoning anyone. It's totally normal for him to find another person who can give him a heir to continue the bloodline.
Furthermore, the king's marriage with Nathaniel is arranged marriage, which probably a loveless marriage for the king, that's why he fell in love with the mc.

Just my guess but Doha maybe keep trying to block Bada from reaching the ending because he doesn't want to be separated from him even mor after knowing that Bada has no idea what will happen later.
Idk, I only hope Bada will finally realize it and something change including the situation they are always in (being in the game).
"duty" huh? After getting scolded and criticized numerous times by Rishar, you finally remembered it? Huh?