Coin is a retro cafe in Myeongdong that serves waffles, bingsu, and coffee. The strawberry waffle has a softer texture than Belgian-style waffles, closer to baby castella, and the bingsu comes with a lot of ice cream on top. You have to climb the stairs to the second floor, where the second and mezzanine levels have a mix of different chairs, while the third floor and the outdoor smoking area are relatively tidy. The coffee is thin.