All For One decide to participate in the charity event. This leads Yoon Sul Chan’s group, to be removed from having to perform. Ma Joon Hee, the All For One leader convinces the teachers to allow All For One and Color Bars to battle against each other to decide who will perform in the charity event. Cha Do Nam is finally convinced to perform with the Yoon Sul Chan's group and reveals his beatboxing skills, while Jung Sun Woo decides to leave All For One to help out the other group. (thetvdb.com)