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  Bycatch by LibbyLune

  Fandoms: One Piece  

  • Explicit
  • Graphic Depictions Of Violence
  • M/M
  • Work in Progress

  07 Apr 2022

  Tags

  • Graphic Depictions Of Violence
  • Roronoa Zoro/Vinsmoke Sanji
  • Vinsmoke Sanji
  • Roronoa Zoro
  • The Vinsmoke Siblings
  • Trafalgar D. Water Law
  • Monkey D. Luffy
  • Usopp (One Piece)
  • Nami (One Piece)
  • Tony Tony Chopper
  • Nico Robin
  • Alternate Universe - Fantasy
  • Alternate Universe - Merpeople
  • Graphic Description of Injury
  • Slow Burn
  • atypical reproductive biology
  • lots of really specific fish stuff
  • Adult Themes
  • Eventual Happy Ending
  • Angst
  • First Kiss
  • Hand Jobs
  • also. definitely absolutely NEVER any mpreg in this story EVER pls be aware
  • Anal Sex
  • creature dick shenanigans

  Summary

  bycatch (noun / ˈbaɪ.kætʃ): fish or other sea creatures that are caught unintentionally by people who are trying to catch other types of fish, ex., injured merpeople caught while in pursuit of other exotic sea monsters. Gotta make up those lost profits somehow.

  Language:

  English

  Words:

  85,803

  Chapters:

  12/?

  Comments:

  184

  Kudos:

  879

  Bookmarks:

  175

  Hits:

  18,004

  Bookmarked by Exo_DN

  04 Jun 2026

  Bookmarker's Collections:

  • Zosan
  • Read

  Bookmarker's Notes

  Incomplete as of now, but looks real good to me! Love the double transformation, if mers can go human, why can't humans go mer?
  We plan to defeat Doflamingo!! Then Judge!! (probably) I like how Law and other non strawhats are included in the story