Location: Yongyu Train Depot, Incheon Guest: Lee Si Young and Choo Sung Hoon This week on "Running Man," Sung Hoon and Si Young join the name tag race at four in the morning. All the members are terrified, and they go after each other to take the bounty. Next, they play various games in teams to earn money, which they can use to buy better paper disks in the final competition. Who would be the king of ttakjichigi?