24-hour sundaeguk restaurant near Sillim Station, Seoul: Sinjuokmi
Sinjuokmi Sillim Station is a sundaeguk (blood sausage soup) restaurant open 24 hours, every day, near Sillim Station Exit 6 in Gwanak, Seoul. On a midnight visit, a soondae-only sundaeguk and a spicy sundaeguk with a suyuk jeongsik (boiled pork set) upgrade for 3,800 won extra came to 26,800 won total, and the broth was mild enough to season with salted shrimp at the table. The bowl held only 7-8 pieces of soondae, so an add-on option would help, but Sinjuokmi still makes a satisfying late-night meal in Seoul.