Tamseu Kalguksu sits five seconds from Exit 6 of Hongdae Station and serves kalguksu and kongguksu. In summer, yeolmu noodles and seoritae kongguksu are on the menu, and the seafood kalguksu has a broth that tastes like a sagol base. It opens every day at 11 a.m. and stays open until 11 p.m. with no break. The kimchi is on the weak side.