Janganbeol Hamheung Naengmyeon Main Branch in Seoul serves Hamheung-style naengmyeon alongside galbijjim. The mul naengmyeon broth is seasoned mildly enough that no vinegar or mustard is needed, and the bibim naengmyeon is eaten wrapped with galbijjim. Ordering galbijjim brings a service bowl of galbitang broth, and adding sari adds a bowl of naengmyeon without toppings. The bibim naengmyeon has a strong gochujang taste, and the mandu and mul naengmyeon are on the salty side.