Oh, thank you! I'm really glad you enjoyed it! Sungjong is a wonder, and I agree that he's one of the smartest in the group--and definitely the most given to fostering that intelligence, if the fact that he reads widely is anything to go by.

I think he is always thinking about how to get what he wants while also trying to help infinite and so on

I agree. He's INCREDIBLY savvy, but not in a ruthless way--he balances getting what he wants with also being good to those around him. It's really admirable. And I can't imagine anyone not adoring him!

Thanks for the comment!