On the ground floor of the building with a dog signboard, in the shopping district near the office street, sits a cafeteria called "Youshoku no Nekoya," which features a cat illustration on the door. It has been open for fifty years and has satisfied various salarymen from nearby offices. Despite being called a western cuisine cafeteria, it also provides other varieties of menus. For the people of this certain world, it is their one-and-only special cafeteria. There is, however, one secret to "Nekoya." The cafeteria is closed to the public every Saturday to make way for special guests. When a bell rings, customers from different places of birth and races appear who ask for mysterious and delicious dishes. They are actually the same dishes served to the salarymen, but these special guests find them more exotic than what they are used to. As the cafeteria aims to serve masterpieces, it is usually referred to as an "alternate-world restaurant." And so, the bell rings again this week.