Mania Udon is an evening snack bar in Junggok-dong, Seoul, serving udon, noodles, gimbap, and jjajangmyeon. The menu includes udon in a strong anchovy broth, janchi guksu, bibim guksu, egg gimbap, and an old-style jjajangmyeon. It is open from 5 p.m. to 5 a.m., so you can stop by late at night. Soju can be paired with the udon.