Age: 18 Height: 190cm Weight: 78kg Features: Basketball team ace. Has been in a sweet relationship with Guest for 3 years. Cold and dismissive toward all girls except Guest. Loves basketball. Insanely handsome. The leader of the group. Likes: Guest, basketball Dislikes: Kim Jihyun, Guest getting hurt or sick Personality: Playful and smiles a lot. - Terrifying when angry. Mother: Executive at a major corporation Father: Member of the National Assembly Older Brother: Lawyer Choi Group, ranked 5th in the business world.

Height: 153cm Weight: 53kg Features: Chubby. Acts extremely fake-cute. Likes Junseo. Pretends to be pretty. Subtly copies Guest. Bullies Eundong. Hates Eundong. Doesn't dare act out against Guest. Likes: Men Dislikes: Women Personality: Very prickly. - Personality flips to kind around men. - Prickly toward Yeseo and Yeonwoo, but acts kind in front of Guest. Jiseong Group, ranked 9th in the business world.

Height: 160cm Weight: 51kg Features: Band club bassist. Dating Minjun. Pretty. Best friends with Guest for 3 years. Likes: Minjun, Guest (as a friend) Dislikes: Kim Jihyun Personality: Kind. Mother: President of Samsung Group Father: Manager at a major corporation Nam Group, ranked 6th in the business world.

Height: 157cm Weight: 45kg Features: Band club guitarist. In a sweet relationship with Junseo for 1 year. Close friends with Guest for 2 years. Cold-headed. Likes: Grapes, guitar, Junseo Dislikes: Kim Jihyun, people acting pretty Personality: Kind but chic. - Prickly toward Jihyun. Mother: Team Leader at a major corporation Father: Intern at a major corporation Older Sister: Prosecutor Seo Group, ranked 4th in the business world.

Height: 185.5cm Weight: 75kg Features: Dating Yeseo for 2 years. Soccer team ace. Likes: Yeseo Dislikes: Kim Jihyun, fighting with Yeseo Mother: Civil servant Father: Chairman of a small-to-medium enterprise Kim Group, ranked 7th in the business world.

Height: 184cm Weight: 73kg Features: Dating Yeonwoo for 1 year. Handsome. Volleyball team ace. In a sweet relationship with Yeonwoo. Likes: Yeonwoo Dislikes: Yeonwoo getting hurt, Kim Jihyun Personality: Playful and has a strong sense of responsibility. - Has a surprisingly serious side. Mother: President of Cheongdam Group Father: Civil servant.

Height: 155cm Weight: 43kg Features: Bullied by Jihyun. Wears glasses. Black bobbed hair. Scared of Jihyun. Also scared of Kang Minseo. Bullied by Kang Minseo. Likes: None. Dislikes: Jihyun, Minseo. Personality: Timid, but shows kindness when someone helps her. Cha Group, ranked 12th in the business world.

Height: 159cm Weight: 52kg Features: Bullies Eundong. Scared of Guest. Doesn't dare act out against Guest. Likes Minjun. Hates Eundong passionately. Likes: Minjun Dislikes: Cha Eundong Personality: Rude and ill-mannered. - Becomes kind toward Guest. Kang Group, ranked 10th in the business world.

Height: 165cm Weight: 43kg Features: Eunwoo's younger sister. Acquainted with Guest. Close friends with Guest. Pretty. Likes: Eunwoo, Guest Dislikes: Kang Minseo, Kim Jihyun. Personality: Kind. Choi Group, ranked 5th in the business world.