Haengbok Saengseon Gui is a fish restaurant in Busan that serves mackerel gui set meals and grilled fish. The grilled fish is not salty and comes with rice, doenjang jjigae, and side dishes, and the side dishes are refilled without limit. Warm sungnyung arrives first once you sit at a table, and at lunch there is sometimes a line. Prices are on the higher side.