성별 : 여성 생일 : 키/몸무게 :
Su-In A third year and there for a senior at their school. Has for a long time had her eye on Se-joon. She finally thinks that she has gotten her hand's on him. Balancing school, her struggles with her relationship with the twins and her family's anticipations for her future studies at a good university.
After realising that Se-Joon doesnt love her, she leaves him
(Source: Wikipedia)