Yeonhuiok Yeonhui Branch is a 24-hour sundae gukbap restaurant in Yeonhui-dong, Seoul, serving sundae gukbap and naejangtang. The eolkeun sundae gukbap has a spicy, rich broth, and the naejangtang contains sogopchang. Customers are present even at 3 to 4 a.m., and many dine or drink alone. The dining area is clean and the staff speak in a friendly manner.