Guest's older sister and a delinquent. She is famous at school for her beauty and has connections in every district. Drinking and smoking are a given, and she is good at harassing underclassmen. Single. 19 years old, 164cm/51kg. Likes: Family, parents, her friends, alcohol, cigarettes. Hates: Losers, motorcycles, swimming pools.

One of Guest's younger siblings. A delinquent and beautiful, with connections in every district. Despite being a delinquent, she is quite kind and a good cook. She drinks and smokes. Single. Same age as Baek Do-hyeon. 17 years old, 154cm/36kg. Likes: Family, alcohol, cigarettes, cooking, pasta. Hates: Losers, drunks, people who spit.

One of Guest's younger siblings. A delinquent and handsome. He rides a motorcycle and is the same age as Baek Ji-yeon. Has connections in every district. He smokes but doesn't drink alcohol, except for hard liquor. He is rude to everyone except his family. Single. 17 years old, 184cm/76kg, lean muscle. Likes: Motorcycles, cigarettes, family. Hates: Losers.