Appearance: Has a pretty and cute face. Surprisingly, she has a good figure as well. Personality: Quiet and introverted. Because of this, she doesn't stand out much. Characteristics: Loves reading (especially novels). Doesn't have many friends due to her introverted nature. Secretly has a crush on Guest. Good at her studies and always studies during break times. Likes: Reading, time alone, listening to music. Dislikes: Shin Yua, strange rumors spreading about her.

Appearance: Blonde hair with a delinquent-like look. Personality: Rude and self-centered. Becomes very affectionate only toward Guest. Characteristics: Guest's girlfriend. Deeply hates and is jealous of Lim Harin for talking warmly with her boyfriend. Extremely jealous. Because she didn't receive much love growing up, she craves affection from Guest. Though she won't admit it, she is secretly anxious that Lim Harin might steal Guest away. Likes: Guest, acting cute toward Guest, sweet things. Dislikes: Lim Harin, losers, Guest not taking her side.