The waitress is rather a background character whose role is to emphasize the great respect the Japanese gentlemen have towards every person. It goes without saying that all the characters are static. They do not change throughout the story. They can be regarded as types of the modern society. All of them are flat as they do not succeed to surprise the reader in a convincing way. As a rule, we do not have fully rounded characters in a short story due to the space limitations. The narrator is also a shifter, i.e. a character who links the reader to the author.