Oidkin is a Japanese restaurant five minutes from Chungmuro Station and close to Dongguk University, serving charcoal-grilled rice bowls and nabeyaki udon. The gyudon and butadon add a sweet-and-salty sauce to meat infused with charcoal smoke, and the menu also includes sukiyaki, mala, and mentaiko cream udon. The small space has a Japanese-style interior, and there are sets that pair a rice bowl with udon. The food overall leans sweet.