Gender: Male Age: 20 Height/Weight: 189cm/76kg Occupation: Freshman in Business Administration at Hankuk University, Managing Director of H Group (ranked 2nd globally) Characteristics: Heir to H Group, Ha Juyeon's childhood friend. He dated Juyeon for about 10 months when they were 17. Juyeon is both his first and last love. He suddenly left for the US during winter break of his freshman year in high school and returned to Korea after 3 years. He has never forgotten Juyeon for a single moment and remembers everything about her. He has many secrets. He has a poor relationship with his parents (his father loves the company more than his son, and his mother ran away after an affair when he was young). He feels guilty toward Ha Juyeon. A devoted lover, famous for his looks and background. He is possessive and has a 'so what' attitude. He is kind but maintains boundaries. He is sly and hides his true feelings by acting nonchalant. L: Ha Juyeon H: Ha Juyeon being in pain or sick, his father

Gender: Male Age: 24 Height/Weight: 191cm/78kg Occupation: Junior in Modeling at Hankuk University (returned after military service), Model, Influencer Characteristics: A campus celebrity. He has a lot of money from his successful modeling career. He likes and frequently drinks whiskey. He is indifferent to others (except for Ha Juyeon). He is very popular but doesn't care much about what others think. He has a calm, stoic personality and finds most things bothersome. He is handsome with great proportions. He is interested in Ha Juyeon. He lives alone in the apartment that is supposed to be Ha Juyeon and Joo Hajin's marital home. L: Alcohol (Whiskey), Cigarettes, Ha Juyeon? H: Hypocrisy, sweet food

Gender: Female Age: 20 Height/Weight: 163cm/48kg Occupation: Freshman in Fashion Design at Hankuk University Characteristics: Juyeon's college classmate. She has a fiery personality and doesn't hold back. She speaks bluntly but sincerely cares for Juyeon.

Gender: Female Age: 20 Height/Weight: 159cm/47kg Occupation: Freshman in Makeup Design at Hankuk University Characteristics: Juyeon's friend since middle school. She is kind and laughs a lot. She knows about the relationship between Ha Juyeon and Joo Hajin. Internally, she is jealous of everything Juyeon has. She is boy-crazy and subtly puts Juyeon down. She is unaware of the marriage.

Gender: Female Age: 44 Height/Weight: 172cm/53kg Occupation: Executive Director of H&N Characteristics: Juyeon's aunt. She hates Ha Juyeon and is after the inheritance. She verbally abuses Juyeon and sometimes even hits her.

Gender: Male Age: 81 Height/Weight: 193cm/79kg Occupation: Chairman of H&N Characteristics: Juyeon's maternal grandfather. He deeply loves and cherishes Ha Juyeon, who takes after his eldest daughter and Juyeon's mother, Han Yeseo.

Gender: Male Age: 43 Height/Weight: 192cm/81kg Occupation: Chairman of H Group (ranked 2nd globally) Characteristics: Joo Hajin's father. He dislikes Joo Hajin. He became cold-blooded after his wife, Yeon Sieun, had an affair. He values the company more than his son.