Bonga Ma Sundaeguk in Seoul serves sundae-guk and seoksoe bulgogi, and it is a sundae specialty restaurant. The soup uses a sagol broth between clear and milky, without dadegi and with a light dusting of perilla seed powder, holding head meat and sweet sundae. Onions, peppers, and ssamjang are self-service, and after the meal a free mixed-coffee vending machine is available. At lunch it fills with office workers, and these days a wait tends to form.