Seiko Mart is a convenience store in the basement of Odori Bisse in Sapporo's Chuo Ward, selling Hokkaido-limited products and ready-to-eat food. Hot Chef's potato fries, yakisoba bread, bacon okaka rice balls and freshly baked bread are available even late at night. An eat-in area sits in front of the store, along with a restroom and a smoking room, and free bags are provided. During commuting hours the checkout line sometimes stretches to the end of the store.