Nakau is a rice bowl and noodle shop in the underground arcade at Sapporo Station, serving udon, soba, gyudon, and oyakodon. Oyakodon, kitsune udon, and curry are available for a quick meal from the morning. It opens at 7 a.m. and uses a self-service system where customers buy a meal ticket from a kiosk and hand it to staff. Around Sapporo Station in the early morning, there are not many restaurant options.