Seung Jae and Ji Yong try the zip-line that goes over a jungle in Mexico. The 2-hour-long zip-line doesn’t tire Seung Jae, and he has a great time with his dad. Si An, Seol A, and Soo A meet Na Eun and Gun Hoo for the first time. Na Eun and Si An become really close after spending a day together. Meanwhile, Sam hears how William’s been feeling towards Bentley for the first time and gets surprised. Stay tuned to find out the reason!