Hongdukkae Son Kalguksu is a small noodle shop near Dongdaemun Station Exit 6 that serves kalguksu and sujebi. The noodles are made from dough kneaded in-house and cut by knife, giving them a chewy texture, and the portions are generous. Payment is made in advance, and when orders pile up, seats are assigned in order. The broth is anchovy-based and leans mild rather than rich.