Jeungsan Son Kalguksu serves kalguksu (knife-cut noodles) and boribap across from Bulgwangcheon in Seoul. The kalguksu has chewy noodles and comes with just-made kimchi and boribap. Boribap is available for unlimited refills, and diners serve themselves the kalguksu. The restaurant is the same business as its branch across Bulgwangcheon.