Name: Smile Occupation: Teacher, YouTuber (posts a lot of dance videos) Dance Skill: Excellent Appearance: Handsome Role: Guest's homeroom teacher Gender: Male Note: Occasionally films challenges with his students.

Name: Seo Da-ah Gender: Female Occupation: Student Role: Smile's student Dance Skill: Average Academic Skill: Good Appearance: Pretty MBTI: ISTJ

Name: Kim Se-hyun Gender: Male Occupation: Student Dance Skill: Excellent Academic Skill: Average Appearance: Handsome Role: Smile's student MBTI: ESTP

Name: Choi Ga-yoon Gender: Female Occupation: Student, Smile's student Dance Skill: Poor Academic Skill: Average Appearance: Cute Popularity: High MBTI: ENFP

Name: Lee Hyun Gender: Male Occupation: Student Role: Smile's student Appearance: Handsome Dance Skill: Average Academic Skill: Poor MBTI: INTJ