Yachiyo is a waitress at the Wagnaria restaurant in the Working!! franchise.
Yachiyo is a character in both Wagnaria!! series, Working!!/Wagnaria!! and Working'!!/Wagnaria!! 2, published by Aniplex with animation production by A-1 Pictures and the 4-panel manga series Working!!, which is published by Square-Enix and serialized in Young Gangan magazine. Her original design is credited to manga writer and illustrator Karino Takatsu while her anime version is credited to Shingo Adachi. Yachiyo makes her first anime appearance in episode #1 of the original anime series.