Sudent body president of Byungmoon High and daughter of Myung-joo, the Chairman of Byungmoon High. Ye-na is the proud, pampered queen of Byungmoon High, excelling in everything. But behind her perfect image, she endures harsh abuse from her controlling mother, Myung-joo, who sees her as a possession. Forced to fake a happy life, Ye-na is shaken when Hae-sung arrives and openly challenges her.