

I would like to know if there are other mangakas like Eiichiro Oda who make an
illustration cover of a specific chapter to be like a side-story, and it's
really like a **canon story** , even it just a side story, for example, this
one:

  1. [CP9 Side story](http://onepiece.wikia.com/wiki/CP9%27s_Independent_Report)
  2. [Buggy's After battle](http://onepiece.wikia.com/wiki/Buggy%27s_Crew:_After_the_Battle!)

Is this really common in manga industry? If yes, is there another mangaka that
is making this kind of "unusual" side-story? And is Eiichiro Oda the one who
started this kind of thing?


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2018-02-18T11:21:05.823
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2018-02-18T15:12:14.327
2018-02-18T15:12:14.327
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question
one-piece mangaka
Did Eichiro Oda the first mangaka that make a side-story of certain character in his cover chapter?