Burger Boy Sinyongsan is a burger restaurant in the Yongsan Jeongbichang food alley near Yongsan Station, serving American-style handmade burgers. The pepperoni burger contains a patty, cheese, pepperoni, and chopped jalapeños, and the fries come out crispy. The space is two old houses joined and renovated into one store, and soda refills are self-service and unlimited. The default size is not large, which leaves heavy eaters wanting more.