Byeolnan Gopchang is a gopchang restaurant in Ansan that serves gopchang, makchang, daechang, and jeongol. It sits in front of Ansan Jungang Station, and its modum gopchang comes with basic salt seasoning alongside cuts such as hongchang and cheonyeop. The restaurant is open 24 hours, so it stays open in the early morning. It gets crowded and requires lining up if you arrive late, and the many people make it loud.