During a segment testing one another's strengths, MC Kim Jong Kook asked Kim Se Jung, "Se Jung, have you ever arm wrestled before?" to which she replied, "I like to." 

Now, 1 vs. 4, that seems a little unfair, doesn't it? But not for Kim Se Jung! The rookie girl group member first beat out Bora, then Dasom, followed by Hyorin, and then finally met up with SISTAR's arm wrestling champion Soyu! In the end, Kim Se Jung proved victorious even against Soyu, wowing the MCs. 

Afterward, Block B's Zico shied away from Kim Se Jung, saying, "I'm scared", causing laughter.