Samseong Wonjo Yanggopchang is an old gopchang restaurant in Cheongdam-dong that serves gopchang and yang as a combo. The gopchang is packed with gop and has almost no smell, while the yang is chewy. The cheonggukjang is ground into powder, thick, and has almost no smell, and the bokkeumbap is not heavily salted, making it a pairing to eat together. There are not many seats, so a wait can form even if you arrive at opening time.