Why the hate to Yoong Woon? The guy did so much for that girl for her "trauma" and all he gets in return is a breakup. She could've never change him if he didn't want to in the first place and dude's a hero. Just cuz the manga isnt about him and he is a bit ugly doesnt make him any worse of a human being. On the other hand you guys who have judged him like that are shittyy