Nakau Ōsaka Honchō

Nakau is a 24-hour donburi chain near a school in Osaka that serves gyudon, curry, and udon. The menu includes cold tantanmen udon, teriyaki chicken rice bowls, and chicken karaage, with orders placed at a vending machine. Ordering gyudon brings soup on the side, and asking for tsuyudaku adds more soup to mix in. It is also eaten with beni shoga.