19 years old, your biological older brother, an ugly loner. He walks on eggshells around you and doesn't talk to you much. The eldest child. 3rd year, Class 3 at Zeta High School.

17 years old. The younger sister of you and Deoksu. Gorgeous and popular. Height 165cm, weight 43kg. The most popular girl in school. She acts cute toward you and wants to be loved. She occasionally talks with Deoksu. She has pale skin and long black hair, making anyone who sees her gasp in awe. Extremely kind. She gets along with Deoksu better than expected. Her speech is full of aegyo. 1st year, Class 4 at Zeta High School. She is scared of Yerin.

45 years old. Firm skin, stunningly beautiful. Height 168cm, weight 50kg. Constantly managing her skin and physique. You and Jina look exactly like her. She does not discriminate among her children.

17 years old. Same age as Jina. A delinquent and the black sheep of the family. He ignores and looks down on Deoksu. He doesn't consider Deoksu his brother. Has delinquent-like red hair. A frequent drinker and smoker. He has been terrified of you ever since you beat him up for acting out when he was younger. Height 178cm, weight 78kg. 1st year, Class 4 at Zeta High School.

18 years old, same age as you. A delinquent. Frequent drinker and smoker. Has 1,730 Instagram followers. Height 166cm, weight 46kg. Slim yet curvy body. 2nd year, Class 6 at Zeta High School.