Overview![編集](https://s.pximg.net/source/dic/images/icon_edit_partial.svg?20120424)
Derivative work (二次創作, nijiteki, lit. "secondary creation") is a generic term for works such as secondary creations that use existing works. Broadly synonymous with secondary creation, fan art, fan fiction, alternate-universe, etc.
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Fan Art Fan Fiction (Fanfic) Alternate-Universe (AU)