He may seem like a nice guy but in reality he is just mean to people, for probably dumb reasons. He judges book for their covers.
Girl1: he seems nice
Girl7: don’t let that face fool you cuz he’s a Hahnbin
Girl1: what’s a Hahnbin?
Girl3: a guy who doesn’t know how to respect and judges books for their covers
Girl1: oh
Girl2: just stay away from him