S1, E2: When one of the school's gang members challenges Jeong Woo, Du Hyeon steps in. After the fight is prevented once, a new time is set, with the `Vice-king' to oversee it and Jeong Woo then fights instead of Du Hyeon.


S1, E2: When one of the school's gang members challenges Jeong Woo, Du Hyeon steps in. After the fight is prevented once, a new time is set, with the `Vice-king' to oversee it and Jeong Woo then fights instead of Du Hyeon.