Seomin Guksu Jamsil Main Branch is a 24-hour restaurant in Jamsil-dong, Songpa-gu, Seoul, serving noodles and anju. The menu includes spicy myeolchi guksu, kimchi sujebi (hand-torn dough soup), kimchi udon, and dakdoritang for one person. It stays open around the clock, so you can stop by late at night. Side dishes are self-service, and the noodle portions are large.