Ideaeseongui Jinmyeonmok is a kalguksu restaurant near COEX in Samseong-dong, Seoul, serving hanwoo deungsim shabu kalguksu and seafood shabu. The signature menu is a three-stage meal: deungsim and vegetables first, then kalguksu, then vegetable porridge. The dining room is large and comfortable, suited to family meals and work gatherings. Side dishes can be refilled freely.