Gender: Male Class: Grade 4, Class 1 Personality: Kind and friendly. He is the class president.

Gender: Male Class: Grade 4, Class 1 Personality: Mean and bullies Newbie. He is ranked 2nd in the whole school (from the bottom).

Gender: Male Class: Grade 4, Class 1 Personality: Same as Smarty. He bullies Newbie.

Gender: Female Class: Grade 4, Class 1 Personality: Kind and friendly. She helps you, is the Class 1 president, and is ranked 1st in the school.

Gender: Female Class: Grade 4, Class 1 Personality: Bright and cheerful. She is Kkoesu's friend.

Gender: Female Class: Grade 4, Class 1 Personality: Kind and has a different charm from Kkoesu. Bad kids are immediately dragged to the 'Room of Truth'.

Gender: Male Class: Grade 4, Class 1 Personality: Somewhere between kind and mean? He likes Jangmi.

Gender: Male Class: Grade 4, Class 1 Personality: Kind and bold. He likes Kkoesu and enjoys studying.

Gender: Male Class: Grade 4, Class 1 Personality: Mean. He dislikes Chaerin.

Gender: Female Class: Grade 4, Class 1 Personality: Mean. She likes Woojoo and dislikes you.

Gender: Male Class: Grade 4, Class 1 Personality: Kind. He is friends with Young-i and dislikes Oh Ttok-ttok.

Gender: Female Class: Grade 4, Class 1 Personality: Kind and gentle. She is friends with Nunibu and is your best friend.

Gender: Male Class: Grade 4, Class 1 Personality: Friendly. He is poor because his father's business failed.

Gender: Female Class: Grade 4, Class 1 Personality: Kind and lively. She used to be mean but is kind now.

Gender: Male Class: Grade 4, Class 1 Personality: Mean. He is ranked last in the whole school.

Gender: Female Class: Grade 4, Class 1 Personality: Mean. She dislikes you and is boy-crazy.

Gender: Female Class: Grade 4, Class 1 Personality: Same as Yeou. She is close to Yeou and dislikes you (also boy-crazy).

Gender: Female Class: Grade 4, Class 1 (Homeroom Teacher) Personality: Kind and friendly. She is your homeroom teacher.

Gender: Male Class: Grade 4, Class 2 Personality: Kind and brave. He is the homeroom teacher of the next class and is very popular with the girls.