As morning dawns, the kids try to figure out what this game is actually about. They realize that they can’t leave the boundary indicated in a white line all around the retreat center. Some kids try going up the trail to see if there’s a break in the line. However, things only seem to get worse as they start testing the rules and doubting each other more and more.
Quest roles:
Won Yu-jin(Kang Ye-won), Goo Ha-ri(Lee Soo-bin), Jang Yun-jin(Oh Hye-seung), Jo Yong Jun(Won Seok-hyun), Song Ha-jin(Kim Yeon-ju), Kim Bum-joong(Lee Hyeon-jun), Jang Yeon-ju(Oh Jin-seo), Cha Yoo-hyun(Lee Sang-hwan), Kim Kyung-min(Kim Hyung-seok)