Banjungnyok Sonyo

A girl named Yoon-byul possesses a unique trait—her body appears to float in the air with zero weight. Because of this, she was kept in an institute for study. After reaching high school age, she somehow managed to transfer to a regular school. A criminal group seeks to take advantage of this opportunity to kidnap her, leading to a conflict between the institute and the criminals. The story also follows Yoon-byul's efforts to adapt to life as a typical student.