Ritsuko is a classmate and friend of Mahiru Inami.
Ritsuko is a character in the Working'!!/Wagnaria!! 2anime which is published byAniplex 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. Ritsuko's original design is credited to manga writer and illustrator Karino Takatsu while her anime version is credited to Shingo Adachi. Ritsuko makes her first anime appearance in episode #7 of the second series.