She loves Jiyong too much to the point that it suffocated him. She always cling to him as if he'll disappear anytime from her life. She always nag about him spending more time with his friends rather than having a date with her. She always get suspicious whether he has another girl in his life. She basically gets jealous whenever he gets to talk to another girl around. Chaerin practically set Jiyong as the center of her world... ...until he got fed up and chase her away despite of her begging not to. He needs his time to think about their relationship....