Cha So-Wol is an unranked student in Nam-Il High fight class 1-1. She finished the preliminaries for the ranking matches and was one of the finalists, but was later disqualified from attending the semester ranking matches due to her part in an unofficial fight against Lim Hyung-Chul, another student. She ranked the lowest academically among the first years in fight classes at the Grade announcements. Acquainted with and is often shown hanging around Jang Chun-Soo and Oh In-Taek.