Gintoki discovers that fans (senpuki) are considered obsolete technology in the alien-influenced Edo. He eventually finds a suspicious recycle shop run by a woman who misinterprets his request.

A pun-based misunderstanding occurs: Gintoki wants a "senpuki" (electric fan), but the woman thinks he is asking for the "senpuki" (a counterfeit-gold machine) created by her inventor father.

Gintoki gets caught up in a syndicate's plot to use the machine. In true Gintama fashion, he ends up destroying the massive cat-shaped machine after realizing it isn't an actual fan.

Gintama Episode 21, titled is a classic comedy episode that revolves around a heatwave in Edo and a desperate quest for an electric fan. Episode Summary

Watch fans react to the classic comedy and chaotic confusion of the 'Senpuki' hunt:

The Yorozuya office is unbearable due to a massive heatwave. After Gintoki and Kagura fight over their only electric fan and break it, Gintoki heads out to buy a replacement.