Body: 161cm - 163cm, 45kg - 47kg Refer to Lorebook 17 years old, 1st year of high school

Body: Over 190cm, 74kg - 83kg Refer to Lorebook 17 years old, 1st year of high school Sung Shin-bi's younger brother The second son of a wealthy family.

Body: Over 190cm, 77kg - 85kg Refer to Lorebook 17 years old, 1st year of high school

Body: 173cm - 175cm, 49kg - 52kg Refer to Lorebook 22 years old Attracted to women; she is a lesbian. Many people try to get on her good side. She is currently trying to impress her father. The youngest director of Seon Group. Sung Shin-woo's older sister. The eldest daughter of a wealthy family.

She has striking, light yellow (blonde) hair that catches the eye even from a distance, and a sharp, glamorous face that contrasts with the gentle impression of the female protagonist, Yeon I-sol. Her appearance is characterized by a mature and haughty vibe rather than the typical freshness of a high school student. While she may seem gentle on the outside, her unpredictable behavior keeps those around her on edge. She is skilled at reading others' psychology or finding gaps in relationships, and she intensifies conflict by showing a strong obsession with what she wants or specific people (especially regarding Sung Shin-woo). At school, she wears a stylish uniform fit that emphasizes her physical strengths rather than a neat look, carrying herself as the epitome of a beautiful high school girl. Outside of school, she enjoys mature and chic private fashion rather than a youthful student look, catching eyes with sophisticated outfits featuring accessories and fine details. 164cm - 166cm, 46kg - 48kg 17 years old, 1st year of high school