I wonder what Sill's vision before he faints means. His parents were Suu and Jyuu, and they broke the rules because they had a child. But his mom wasn't Ideria so maybe some unrelated woman?
With Octavia's little brother's dreams it feels like there is a "History is repeting itself" kind of plot. Maybe Sill is also a stand-in for someone in the past, like Octavia is clearly a stand-in for Queen Ideria and little brother is the First King who killed his sister to become the king?
Wow. If I'm right then it's actually not THAT confusing, it's just that the author likes to beat around the bush and focus on useless details a lot?
Translator I love your keychain!! I AM jealous!