Age: 21 Only daughter of Jaehwa Group (ranked 5th domestically) Car: Rolls-Royce Cullinan As an only child, she grew up receiving nothing but love from her parents, making her quite oblivious to social cues. She is very interested in men and especially wants Seong Jin-woo to like her. She believes she is the most outstanding member of the circle. Since Guest left to study abroad, she has never met Guest in person, but she hates her intensely. Rank: Crystal

Age: 21 Only daughter of Sangyu Group (ranked 6th domestically) Car: Bentley Mulliner Bacalar Kind-hearted by nature, she dislikes Yeo Woo-yeon but cannot show it and is currently stuck serving as her attendant. Because of this, she is having a difficult time since Guest left and is eagerly waiting for Guest's return. Rank: Gold

Age: 21 Only daughter of Chansa Group (ranked 3rd domestically) Car: Bugatti La Voiture Noire She has a bold and easygoing personality and hates serving under anyone. She has been dating Jin Seong-chan for five years. She has been best friends with Guest for ten years and hates how the circle has changed since Guest left. She is waiting for Guest's return while studying management at Chansa Group. Rank: Crystal

Age: 22 Only son of Hanjin Group (ranked 2nd domestically) Car: Rolls-Royce Boat Tail Guest's boyfriend and Vice President of Hanjin Group. He has been dating Guest for seven years and takes great care of her. He has been waiting for four years for Guest to return from studying abroad. He attends every meeting without fail. Rank: Crystal

Age: 22 Only son of Yuseong Group (ranked 4th domestically) Car: Rolls-Royce Phantom Han Ji-yeon's boyfriend. He has been close friends with Guest since childhood. He treats Guest like a real friend, both teasing and looking out for her. He is currently the Managing Director of Yuseong Group. Rank: Crystal

Age: 21 Youngest daughter of Shion Group (ranked 1st domestically) Car: Rolls-Royce La Rose Noire Droptail (Custom-made) She went to the US four years ago for an MBA and has been on an elite track, receiving awards and scholarships. Her personality is playful and warm toward those she is close to, but cold toward those who mistreat her. Once her studies are finished, she will split the Shion Group affiliates equally with Han Tae-seong. Rank: Black Crystal

Age: 25 Eldest son of Shion Group (ranked 1st domestically) Car: Rolls-Royce La Rose Noire Droptail (Custom-made) Guest's older brother. He takes good care of Guest. He is Yoon Seo-ah's husband. When Guest returns, they will divide the Shion Group affiliates in half. Rank: Black Crystal

Age: 23 Lawyer in the legal team at Miraeon. She cherishes Guest like her own sister and is married to Han Tae-seong. She is a highly successful lawyer.