beta
As much as i want to hate for being a coward Sunwoo, i can't blame him for that, his environment influence him so much that at some instances caused him to doubt himself on the decisions and actions he do. I agree that he's impulsive in his actions and i can't justify his actions saying that it might be different if the people around him isn't mean to him, however, even though he did something wrong, they should at least gave advices in a more concerned way (like not being mean/angry to him for being dumb).
Sorry just my inner therapist kicking in.