4x181 - You Quiz On The Block

Saving lives at the forefront of the airport, Shin Ho-cheol (Director of the Incheon International Airport Medical Center). Soaring of paper planes. Represented Korea at a paper airplane contest, Lee Seung-hoon (Paper Airplane Contest Athlete). A pioneer of Korea's architecture, an internationally renowned. The master's building around the world, Seung H-Sang (Architect). Playing various characters, he makes people curious every time. Soars endlessly, Im Si-wan (Actor / Former Boygroup Member).