Changseongok is a haejang-guk restaurant in Yongmun Market in Yongsan, Seoul, serving a Seoul-style haejang-guk made with ox leg bones, seonji, and cabbage. The soup base is doenjang and ganjang, with tender cabbage leaves, dried radish greens, and gochudadaegi added, and a fried egg can be ordered on the side. Parking is at a paid lot nearby, and the market road is narrow. For those seeking a spicy bone haejang-guk, the mild and sweet broth will not match their preference.