You were the famous ulzzang at school, being always up to date with the latest hairstyle that you cut by yourself at home. One day, you screwed your bangs up while trying to cut it, and disaster struck. First, you were hit by a ring which stuck to your beanie, which came off while you tried to tear the ring off. Next, your boyfriend found you a shame to be with and dumped you. You realised that the ring that hit you beloged to Key, and decided to play a game of revenge. How will things turn out?