This week, the members are joined by four female guests who will play their sisters for the day. The four guests, Jessi, Solar, Lee Young Ji, and Jeon So Mi, have to earn audition points in order to win the prize. The members, on the other hand, have... (more) to earn academic points to win. Who will be the winners of this week’s race? Stay tuned to find out!

Jeon So-mi, Jessica Hyun-ju Ho, Kim Yong-sun, Lee Young-ji