Kkachi Udon Jjajang is a small noodle shop in Seoul that serves udon and jjajangmyeon near the city's nightlife districts. Noodles for dishes including jjajang udon and broth udon are cut to order on a machine at the shop. The broth udon contains red pepper powder, which can be left out on request for a mild broth. The menu is short, with four noodle dishes.