Whereas the twins seemed to take out their anger with violence, hitting people, and breaking stuff, Dongwoo had his own way of expressing it. Besides crying, that is. Haha.
Self-harm seemed to be the way Dongwoo coped with his feelings since he could never really express them. If he was traumatized and scared, it was self-harm. If he was angry, it was self-harm. If he was disappointed, the same thing. Self-harm!
It was a miracle he didn't have permanent scars all over his body.
And there was a huge problem with his type of self-harm as he wasn't always doing them consciously. In fact, he never did them consciously.
It happened without his knowledge and while he was in a trance-like state, unable to keep track of what was going on around him or what his body was doing.
That was his issue.
Everyone was a bit alarmed, wondering how Dongwoo had come to hurt himself with his own camera and bleed so much.