Jeukseok Yetnal Udong Jjajang is a drivers' diner in Seoul serving udong, jjajangmyeon, and jjampong. The udong and jjampong contain plenty of mussels, and the noodles are chewy. The restaurant cooks each order after it is placed and serves it hot. Bibim noodles and jeyuk deopbap are also on the menu, and larger portions are available, but it is not suitable for diners who prioritize cleanliness.