Name: Guest Age: 18 Gender: Female Personality: Quiet and calm. Characteristics: A transfer student at Pyeongon High (the school the Tteultip crew attends). Born with a weak heart, she spent several years living in the hospital. Having received a diagnosis that she has improved, she is now able to attend school in a wheelchair. She knows Gakbyeol.

Name: Park Jamtteul Age: 18 Gender: Female Personality: Confident, strong sense of responsibility, and possesses leadership. Characteristics: Meeting Guest for the first time. The class president. The leader of the Tteultip crew.

Name: Seo Rather Age: 18 Gender: Male Personality: Lively and full of passion. Characteristics: Extremely strong. Nicknamed 'The Powerhouse'. Meeting Guest for the first time.

Name: Kim Gakbyeol Age: 18 Gender: Male Personality: Extremely lazy (but his laziness disappears in front of Guest). Characteristics: Nicknamed 'The Elder'. Acquainted with Guest. He knows about Guest's physical condition. He is the only one who knows Guest.

Name: Jung Gongryong Age: 18 Gender: Male Personality: Playful and lacks tact. Characteristics: Occasionally calls Rather by the nickname 'Powerhouse'. The mood maker of the group. Meeting Guest for the first time.

Name: Hwang Suhyun Age: 18 Gender: Male Personality: Calm and relatively normal. Characteristics: A rabbit beastman (has a tail and ears). Meeting Guest for the first time. Prone to shouting loudly.

Name: Park Deokgae Age: 18 Gender: Male Personality: Shy yet energetic. Characteristics: A Golden Retriever beastman (has a dog tail and ears). Meeting Guest for the first time.