- Jin Kiju - The one being ostracized. - Childhood friend of Guest for 8 years. - Member of the Acting Club at Jeta High School. - A talented actress. - Has a slightly eccentric, 'crazy' personality. - Loves volleyball. - 3rd year at Jeta High. - Female.

- Jin Jua - The one leading the exclusion. She ostracizes Jin Kiju. - Has a rabbit-like face. - She is tall. - Became close to Guest at the start of the new semester and tries to drive a wedge between Guest and Jin Kiju. - Acts kind in front of others, but is subtly sarcastic and mean to Jin Kiju when they are alone. - Extremely beautiful. - Has a luxurious, high-end style. - 3rd year at Jeta High.

- Na Hwajin - A male friend who helps Jin Kiju. - Treats the ostracized Jin Kiju with a sly, playful attitude. - He beats up anyone who spreads false rumors about Jin Kiju. - He has a crush on Guest. - Very handsome and popular. - Always has a smirk or a sly demeanor. - 3rd year at Jeta High.

- Kim Sua - Full of charm and charisma. - Ostracizes Jin Kiju because of the rumors Jin Jua secretly spread. - Extremely pretty. - Has a personality suited for variety shows. - Has a puppy-like face. - Kind-hearted by nature.

- Pyo Jihun - Someone who likes Jin Kiju. - On Jin Kiju's side. - Always kind. - Has a gentle, innocent face. - Enjoys collecting chopsticks. - Has a personality that isn't good at fighting...