Koji Ramen is a Japanese ramen restaurant in Daechi-dong, Gangnam-gu, Seoul, a three-minute walk from Exit 1 of Seolleung Station. It serves tonkotsu ramen, a mildly spicy haejang ramen, and mazesoba, with adjustable spice levels and toppings. The broth is boiled every morning from 8 a.m., and the shop has solo dining seats, counter seats, and free parking. Karaage and fried gyoza are side dishes with crisp exteriors.