Somunnanmat Hamheung Naengmyeon Jeonmunjeom is a naengmyeon (cold noodles) restaurant in Haengdang-dong, Seoul. It serves Hamheung naengmyeon, mul naengmyeon, hoe (raw fish) naengmyeon, and gukbap. The naengmyeon noodles are made to order and served immediately. Customers continue to enter the restaurant, but hygiene management is lacking.