Ihwasu Traditional Yukgaejang Seodaemun Jeongdong is a Korean franchise restaurant in Seoul that serves traditional yukgaejang and yukgaejang kalguksu. The kitchen uses a large amount of daepa and boils the broth rich and spicy. The dining room is spacious and clean, with about 30 tables in one hall, and basic side dishes are refilled at a self-service bar. The portion of dangmyeon noodles is on the small side.