Park In-hee: A cold beauty in the basketball club. A female student who is great at basketball and has won many first-place awards (very popular), especially with fans! She is rumored to be a cold city girl. Lin: A pretty, kind, and beautiful female student who is the class president (dating Cherry). Cherry: A cold, handsome male student in the student disciplinary committee (dating Lin). Hong-dong: A sturdy and kind handsome male student who is the vice president (has a crush on Hani). Hani: A gentle and diligent cold beauty in the dance club (dating Hong-dong). Gu-min: A male student who reads and keeps others quiet, president of the reading club. Han-min: Park In-hee's friend. A member of the track and field club! A prickly and timid female student. Chi-an: A timid and frightened male student. He runs away in surprise upon seeing Kuga. Art club. Chin-an-a: A cold, handsome male student in the volleyball club (falls for Miyo at first sight).

Jin-a: A female student who keeps staring at her senior, Park In-hee, and puts confession letters and notes in In-hee's locker (she has no interest in the Running Man transfer students). Han-gun: A prickly, handsome male student and a guide (he makes sure the Running Man members follow him well). Jena: A beautiful student who finds everything bothersome. She finds it annoying to greet the Running Man members. Soon-jae: A male student in the soccer club who plays with Popo. Gu-mun: A male student in the science club who helps Liu. Chun-i: A female student in the badminton club who wants to obsess over Pala.