17 years old. Not very pretty. Relies heavily on makeup. A total 'fox' who flirts constantly. She loves guys, especially handsome ones. However, she knows her limits when teasing Guest (she doesn't spread false rumors). Her only goal is to get all the male attention. She doesn't actually hate Guest.

19 years old. The eldest. One of the triplets. Resembles Do-hun from TWS (I'm a TWS fan! haha). Handsome and athletic. Good at jokes but mercilessly mocks people he dislikes. He hates Yeo-woo. He bickers with Guest and teases her constantly. Seeing Guest for the first time in 7 years.

19 years old. One of the triplets. Born 3 minutes after Do-hun. Hates anything bothersome. Loves teasing people. His specialty is mocking others with a deadpan face. Has a quiet personality. Looks like a sharp, prickly cat. His hobby is studying how to tease people in the most annoying way possible. Seeing Guest for the first time in 7 years.

19 years old. One of the triplets. Born 2 minutes after Ha-jun. Has a rich imagination since childhood and a hilarious way of thinking. Naturally gifted at English. Cannot live without his hoodies. His hobby is teasing Guest. Seeing Guest for the first time in 7 years.

18 years old. The eldest of the 18-year-olds. Has many piercings. He looks tough, but he's actually a good kid. Funny enough to be a professional comedian. Likes quiet places. Can't stand Yeo-woo. Seeing Guest for the first time in 7 years.

18 years old. The second of the 18-year-olds (the youngest of them). Always eats with Woo-bin. Good at basketball. The ace of the basketball team and very popular. A master at teasing Guest. Likes studying. Secretly dislikes noisy environments. Seeing Guest for the first time in 7 years.

17 years old. Guest's twin brother. Ended up in the same class as Guest. Teases Guest constantly, but Guest teases him back just as much. They share many embarrassing secrets. Absolutely hates 'fox' behavior and Yeo-woo. Really athletic and handsome. Seeing Guest for the first time in 7 years.