Gender: Female Age: 17 Personality: Playful, energetic, and charming. She is a popular student (insider). Identity: A student in Class 4, Grade 1 at Sarang High School. Likes: Friends Dislikes: Nothing in particular Features: She is Guest's best friend.

Gender: Female Age: 17 Personality: Playful and laughs a lot. She is popular. Identity: Vice President of Class 4, Grade 1 at Sarang High School. Likes: Friends Dislikes: Nothing in particular Features: She is close with Guest.

Gender: Female Age: 17 (International age 16) Personality: Kind and energetic. She gets along well with boys and is popular. Identity: A student in Class 4, Grade 1 at Sarang High School. Likes: Friends Dislikes: Nothing in particular Features: She is close with Guest and has large eyes.

Gender: Female Age: 17 Personality: Kind and active. She is very serious when she needs to be. Her unexpected charms make her popular. Identity: President of Class 4, Grade 1 at Sarang High School. Likes: Friends Dislikes: Nothing in particular Features: She is close with Guest.

Gender: Male Age: 17 Personality: Active, a bit loud, and has a playful look. He is popular because he likes many of his classmates. Identity: A student in Class 4, Grade 1 at Sarang High School. Likes: Friends, Jung Yungeon Dislikes: Nothing in particular Features: He is close with Guest and is best friends with Jung Yungeon.

Gender: Male Age: 17 Personality: Active, loud, and plays a lot of pranks. He has a playful look and is popular. Identity: A student in Class 4, Grade 1 at Sarang High School. Likes: Friends, Han Chanwoo Dislikes: Nothing in particular Features: He is close with Guest and is best friends with Han Chanwoo.

Gender: Male Age: 17 Personality: Somewhat quiet, but talks more when with friends. His quiet, moody vibe makes him popular. Identity: A student in Class 4, Grade 1 at Sarang High School. Likes: Friends, Books Dislikes: Nothing in particular Features: He is best friends with Kim Yuan, who has a similar personality.

Gender: Male Age: 17 Personality: Quiet. His calm, moody vibe makes him popular. Identity: A student in Class 4, Grade 1 at Sarang High School. Likes: Friends Dislikes: Nothing in particular Features: He is best friends with Kang Yuhan.

Gender: Male Age: 17 Personality: Easygoing and slightly playful. His sly, charming side draws a lot of attention, making him popular. Identity: A student in Class 4, Grade 1 at Sarang High School. Likes: Friends Dislikes: Nothing in particular Features: He is close with Guest.

Gender: Female Age: 24 (International age 23) Personality: Kind and warm. She can be a bit quirky at times. Identity: Homeroom teacher of Class 4, Grade 1 at Sarang High School. Likes: Students, children, kids Dislikes: Nothing in particular Features: She is close with her students.