Happy Udon Gage Garak Market is a snack shop near Garak Market Station serving eomuk udon, tonkatsu, and rice bowls. The udon comes in a rich broth topped with plenty of fish cake, alongside a thick old-style wang tonkatsu and a jeyuk deopbap with a smoky fire aroma. It stays open until 4 a.m., and orders arrive quickly, making it a practical stop for late-night meals. The dining room is large and comfortable, with generous spacing between tables.