Aoi Yamada's older brother.
Kirio 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. His original design is credited to manga writer and illustrator Karino Takatsu while the anime version is credited to Shingo Adachi. Kirio first appears in the anime during episode #7of the second series.
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