
Niro might as well flunk the future exams if he continues acting like a superior asshole. The world's fucked up, but that doesn't mean it's Niro's obligation to clean up the shit laying around for the sake of Lord Khundun.
He's too emotional-- and no one knows exactly why. He keeps saying that it's for his father, Khundun, but how he's overeacting may state otherwise. How he coldly said "Sorry, I'm different from you." to Neria just makes me want to crack his skull. This boy had become too emotional to the point he's overly toxic to the people around him.
I think it would have been better if Terasu never mentioned anything about his true parents. That would've been really, really better. (︶︿︶)=凸

When it comes to Woojin, I'd say he had just been dishonest with himself. I don't buy it when he says that he realized it so late. Maybe he'd always have known it and yet continued to deny it, resulting in Yeonwoo misunderstanding things.
Then, there's Yeonwoo. I get that he has almost no confidence in himself, but just running into Woojin's arms every time he was called did not stick right with me. That's why I'm glad that he pulled himself together, though the post-it note was not the appropriate way, Yeonwoo was able to get his act together and not act like some dog.