Digital preservationists in the anime community actively seek out specific versions of old doujinshi to ensure that translation histories and circle discographies are not lost to time.
The plot of these parodies usually revolved around a comedic or adult setup where Tsunade "heals" Naruto or other characters using highly questionable, non-canonical, and usually absurd methods.
The mega-popular manga and anime franchise created by Masashi Kishimoto.