She first appeared in Episode 21 when Sakata Gintoki of the Yorozuya wanted to buy an electric fan from her. However, she thought Gintoki was asking for a counterfeit-gold machine called senpuuki (銭封機). This machine shares the same pronunciation as an electric fan (扇風機), leading to confusion for Gintoki, who was actually looking for an electric fan. When Gintoki entered her store and asked about a senpuuki, she mistook it as an inquiry about her father's machine and assumed Gintoki was part of an evil organization.
After a series of events, Gintoki helped her destroy her father's machine so that it couldn't be used by the evil organization. In return, she offered him an air conditioner, but Gintoki insisted on getting an electric fan from her shop.
During the Benizakura Chapter, she was one of the sources of information that Gintoki consulted while investigating the missing sword.
She exchanged Gintoki's jammed VCR for a cursed Blu-ray player. The cursed Blu-ray player contained a Blu-wraith inside the disc. Later, Gintoki traded the Blu-Wraith's kotatsu for a cursed kotatsu.
(Source: Gintama Wiki)
