Jang da-hee is not crazy. Although a lot of people that have met her would claim otherwise, one of those people especially being her sister, but she's not. The way she does things might be a bit cruel and might seem impulsive to others, but she has rules; and those rules are the one thing that sets her apart from a mad woman. One of those rules being that she never hurts anyone that doesn't get in her way and to always be sure who exactly that person is. That is why she made sure to wait and see before she acted. She needed to look them in the eyes to be sure that they were the ones that did it.
Earlier that day before the lunch, uju and min-hyuk, kept on watching da-hee to see how she would react. She was visibly angry but she just sat there quietly as people gossiped about her quite loudly; some even threw drinks on her table, but she did nothing; she just simply stood up and left the class when things started to get out of hand.
"Why isn't she doing anything?" min-hyuk asked.
"Better yet, why isn't hwan doing anything, isn't he her boyfriend?"
"Something strange is going on, let's just wait and see. Okay uju?"
"Yeah sure."
Even so why didn't she react when she was sure who her target was. Well, that's because of another rule that da-hee follows. Timing is everything. Whenever da-hee gets into a fight she tends to not stop until the person is either passed out or near death, maybe she really is crazy; well that's what everyone thought as she kept on hitting ji-hoon. Everyone was in shock, everything happened so quickly and honestly, none of them could believe what they were seeing. A senior did try to stop the fight by grabbing her, but she reacted so quickly; she twisted is arm and pinned his head to the table. Then suddenly uju started to scream.
"Da-hee stop, stop it."
Maybe it was because of the desperation in uju's voice, but she suddenly stopped, got off her senior and walked out and nobody stopped her. Security guards finally got to her and took her to the principals office, she didn't argue, she didn't fight them, she just simply followed them.