Yeonhwasan is a Chinese restaurant near Samseong Station and COEX in Gangnam-gu, Seoul, serving jjamppong and jjajangmyeon. The menu includes chadolbagi jjamppong, jaengban jjajang, and samseon or gul jjamppong. At lunch, table waiting and turnover are managed through Tableing, so the line moves even when there are many customers. During lunch hours the interior is crowded and the meal is hectic.