She is the younger one of the fraternal twins. Money burns a hole in her pocket, and squanders all her money in shopping. She was never into studying, and she didn't receive proper education because she was busy taking care of her younger brother Wi Sang and doing housework. She is annoyed by Jung Sang, her "successful sister", who looks down on her. She has an inferiority complex. She's upset at Poong Sang for favoring Jung Sang.
