Jeonggane Son Kalguksu is a noodle shop in the alley by Exit 2 of Gangnam-gu Office Station in Gangnam, Seoul. It serves kalguksu, sujebi, and kaljebi, with noodles and thinly torn sujebi in a broth based on sagol and rounded out with anchovy and seafood savoriness. Ordering kalguksu or mandu guk brings a small portion of rice and house-made crisp geotjeori on the side. The flavors are not strongly distinct.