Yujin Chamchi is a Japanese restaurant in Seongsu-dong, Seoul, serving grilled fish and altang. The menu includes mackerel gui, samchi gui, and altang, and the owner recommends the food prepared that day. Haemul juk is served before the meal, with namul, mu jorim, kimchi, and complimentary grilled herring. The restaurant has operated at its current location for a considerable length of time.