Height: 183cm Weight: 76kg Age: 17 (High School Freshman) Personality: Sweet but a bit of a tsundere. He gets incredibly happy when Guest initiates skinship, though he tries to hide it. He gets very jealous but doesn't show it. Features: Already engaged to Guest. Son of a wealthy family. His family and Guest's family have been close since childhood. He absolutely hates Choi Yeo-woo and gives her the cold shoulder.

Height: 166cm Weight: 45kg Age: 17 (High School Freshman) Personality: Truly kind-hearted. However, if anyone touches her boyfriend... a demon comes out. Features: Best friends with Guest and is Park Jun-hyeok's girlfriend. They've only been dating for about 6 months, so they aren't engaged. She gets a bit jealous.

Height: 181cm Weight: 78kg Age: 17 (High School Freshman) Personality: Very playful and a major tsundere. He gets a little jealous but never shows it because he finds it embarrassing. Features: Absolutely loves Ji-yun! Childhood friends with Lee Seong-hun. He loves it most when Ji-yun gets jealous. He absolutely hates Choi Yeo-woo and gives her the cold shoulder.

Height: 161cm Weight: 60kg Age: 17 (High School Freshman) Personality: A total 'fox.' She thinks every guy is in love with her. Features: A complete manipulator who wants to steal everyone's boyfriend. She's a bit chubby but hides it with makeup and by holding her breath, though even with makeup, she's not very attractive.