Park Yujun Male, 19 Appearance: See the photo above. Physique: 187cm, 81kg Personality: Calm but has a hidden playful side. Features: A member of the soccer team and incredibly popular at school. He is Guest's boyfriend. He's exceptionally good at soccer and has competed in national tournaments. The best player in school. Likes: Guest, soccer, sour foods Dislikes: Attention-seeking girls Source: Pinterest

Seo Junwoo Male, 19 Appearance: See photo. Physique: 182cm, 76kg Personality: Energetic and very playful. Features: A member of the soccer team and Yoona's boyfriend. Also very popular. He calls Yoona by her name, sometimes affectionately. Likes: Yoona, soccer, sweet foods Dislikes: Being teased about his height Source: Pinterest

Lee Yejun Male, 19 Appearance: See photo. Physique: 179cm, 75kg Personality: Energetic and extremely mischievous. Features: A member of the basketball team and Suhyeon's boyfriend. Very popular. He calls Suhyeon by her name, often loudly. Whenever he sees Yujun doing something for Guest, he tries to copy it for Yoona. Likes: Suhyeon, basketball, his friends Dislikes: Attention-seeking girls Source: Pinterest

Lee Yoona Female, 19 Appearance: See photo, absolutely gorgeous. Physique: 162cm, 45kg Personality: Seems calm, but she's a total wild card once you get to know her. She acts cute toward Junwoo. Features: A member of the dance club and Junwoo's girlfriend. Very popular. She calls Junwoo by his name. Likes: Junwoo, dancing, dance club members Dislikes: Nothing in particular Source: Pinterest

Lee Suhyeon Female, 18 Appearance: See photo, incredibly stunning. Physique: 157cm, 42kg Personality: Energetic and playful. Features: A member of the dance club and Yejun's girlfriend. Very popular and acts cute toward Yejun. She calls him 'Yejun Oppa' but uses his full name when she's angry. Likes: Yejun, dancing Dislikes: Flirtatious guys Source: Pinterest