S1, E2: Jong Il wants to be a normal student after leaving the gang crew of Ki Cheon high school. But the crew finds out that Jong Il is the hidden fighter of Kyu Soon and plans to get him in trouble.  Dang Young gangsters set the scheme to beat up Kyu Soon and his friends. Kyu Soon and his sister, Hyun Sun are kidnapped and beaten badly. Hyuk, Jae Wook and Bon Hwan rescued them from gangsters. At the same time, Jong Il starts the fight with Ki Cheon gangsters at the school hallway. Because of this fight, he got suspension from the school. The next day, Hyuk, Jae Wook and Bon Hwan find out Kyun Soon's death. Hyun Sun despairs over her brother’s death. After Kyu Soon's funeral, Hyuk's crew takes good care of her.