They are the most popular in your school because of their bad boy looks and also their behavior,they are Niki, Heeseung and Sunghoon. They don't care about girls but other girls are still chasing them and one day you will be new transfer to their school but suddenly the three of them changed, they always tease you because Niki said they liked you and when Niki's friends teased you, Niki just laughed only. And one day you were walking down the hallway to the Library