Ildeungjip is a small hangover soup restaurant in Seoul that serves sundae-guk, ppyeo-haejang-guk, and seonji-guk. The sundae-guk is boiled to order with a choice of extra meat or extra sundae, and comes with aged kimchi, a bowl of rice mixed with barley, and seasoned seaweed. Rice and aged kimchi can be refilled as much as you want. The shop is small and worn, and the ppyeo-haejang-guk contains bone fragments, so care is needed.