Monster Piece

Series Metadata

Listing Series

• Monster Piece by Synin (rea_grimm)

  Fandoms: One Piece (Anime & Manga), One Piece (Live Action TV 2023)  

  • General Audiences
  • No Archive Warnings Apply, Creator Chose Not To Use Archive Warnings, Graphic Depictions Of Violence
  • F/M, Gen, M/M, Multi
  • Work in Progress

  21 Apr 2026

  Tags

  • No Archive Warnings Apply
  • Creator Chose Not To Use Archive Warnings
  • Graphic Depictions Of Violence
  • Monkey D. Luffy/Reader
  • Roronoa Zoro/Reader
  • Vinsmoke Sanji/Reader
  • Portgas D. Ace/Reader
  • Trafalgar D. Water Law/Reader
  • Eustass Kid/Reader
  • Dracule Mihawk/Reader
  • Akagami no Shanks | Red-Haired Shanks/Reader
  • Buggy (One Piece)/Reader
  • Crocodile (One Piece)/Reader
  • Sabo (One Piece)/Reader
  • King The Wildfire (One Piece)/Reader
  • Reader
  • Monkey D. Luffy
  • Roronoa Zoro
  • Vinsmoke Sanji
  • Portgas D. Ace
  • Trafalgar D. Water Law
  • Eustass Kid
  • Dracule Mihawk
  • Akagami no Shanks | Red-Haired Shanks
  • Buggy (One Piece)
  • Crocodile (One Piece)
  • Sabo (One Piece)
  • King The Wildfire (One Piece)
  • Alternate Universe - Creatures & Monsters
  • Dragons
  • merman
  • Demons
  • Werewolves
  • Vampires
  • Androids
  • headcanons
  • One Shot Collection
  • Fantasy
  • Demon Deals
  • Demon
  • vampire
  • Werewolf
  • Human/Monster Romance

  Summary

  Various one piece characters as fantasy creatures and monsters.

  Series

  • Part 1 of Monster Piece

  Language:

  English

  Words:

  181,643

  Chapters:

  127/?

  Comments:

  539

  Kudos:

  1,741

  Bookmarks:

  145

  Hits:

  90,434

• Sleep Protectors AU by Synin (rea_grimm)

  Fandoms: One Piece (Anime & Manga), One Piece (Live Action TV 2023)  

  • Mature
  • Graphic Depictions Of Violence
  • F/M, Gen, M/M
  • Complete Work

  25 May 2025

  Tags

  • Graphic Depictions Of Violence
  • Monkey D. Luffy/Reader
  • Roronoa Zoro/Reader
  • Vinsmoke Sanji/Reader
  • Portgas D. Ace/Reader
  • Trafalgar D. Water Law/Reader
  • Eustass Kid/Reader
  • Akagami no Shanks | Red-Haired Shanks/Reader
  • Dracule Mihawk/Reader
  • Crocodile (One Piece)/Reader
  • Buggy (One Piece)/Reader
  • Sabo (One Piece)/Reader
  • Coby (One Piece)/Reader
  • Donquixote Doflamingo/Reader
  • Nami (One Piece)/Reader
  • Nico Robin/Reader
  • Enel (One Piece)/Reader
  • Hongo (One Piece)/Reader
  • Reader
  • Monkey D. Luffy
  • Roronoa Zoro
  • Vinsmoke Sanji
  • Portgas D. Ace
  • Trafalgar D. Water Law
  • Eustass Kid
  • Akagami no Shanks | Red-Haired Shanks
  • Dracule Mihawk
  • Crocodile (One Piece)
  • Buggy (One Piece)
  • Sabo (One Piece)
  • Coby (One Piece)
  • Donquixote Doflamingo
  • Nami (One Piece)
  • Nico Robin
  • Enel (One Piece)
  • Hongo (One Piece)
  • Insomnia
  • insomniac reader
  • sleep protectors
  • Sleep Deprivation
  • Teddy Bears
  • Alternate Universe
  • Fantasy
  • Happy Ending

  Summary

  Do you have trouble falling asleep? Choose your Sleep Protector...
  Various One Piece characters x reader

  Series

  • Part 2 of Monster Piece

  Language:

  English

  Words:

  54,593

  Chapters:

  33/33

  Comments:

  233

  Kudos:

  1,247

  Bookmarks:

  128

  Hits:

  43,888

• Dragon riders by Synin (rea_grimm)

  Fandoms: One Piece (Anime & Manga), One Piece (Live Action TV 2023)  

  • General Audiences
  • No Archive Warnings Apply
  • F/M, Gen, M/M
  • Work in Progress

  03 Mar 2026

  Tags

  • No Archive Warnings Apply
  • Monkey D. Luffy/Reader
  • Roronoa Zoro/Reader
  • Vinsmoke Sanji/Reader
  • Portgas D. Ace/Reader
  • Trafalgar D. Water Law/Reader
  • Eustass Kid/Reader
  • Akagami no Shanks | Red-Haired Shanks/Reader
  • Dracule Mihawk/Reader
  • Buggy (One Piece)/Reader
  • Crocodile (One Piece)/Reader
  • Reader
  • Monkey D. Luffy
  • Roronoa Zoro
  • Vinsmoke Sanji
  • Portgas D. Ace
  • Trafalgar D. Water Law
  • Eustass Kid
  • Akagami no Shanks | Red-Haired Shanks
  • Dracule Mihawk
  • Buggy (One Piece)
  • Crocodile (One Piece)
  • Dragon Riders
  • Dragons
  • Alternate Universe - Dragons
  • Soulmates

  Summary

  One piece characters as dragons

  Series

  • Part 3 of Monster Piece

  Language:

  English

  Words:

  16,999

  Chapters:

  12/?

  Comments:

  50

  Kudos:

  393

  Bookmarks:

  31

  Hits:

  11,399

• Deal with the devil by Synin (rea_grimm)

  Fandoms: One Piece (Anime & Manga), One Piece (Live Action TV 2023)  

  • Mature
  • Graphic Depictions Of Violence, Major Character Death
  • F/M, Gen, M/M
  • Complete Work

  04 Jan 2026

  Tags

  • Graphic Depictions Of Violence
  • Major Character Death
  • Monkey D. Luffy/Reader
  • Vinsmoke Sanji/Reader
  • Roronoa Zoro/Reader
  • Portgas D. Ace/Reader
  • Trafalgar D. Water Law/Reader
  • Eustass Kid/Reader
  • Crocodile (One Piece)/Reader
  • Dracule Mihawk/Reader
  • Buggy (One Piece)/Reader
  • Akagami no Shanks | Red-Haired Shanks/Reader
  • Reader
  • Monkey D. Luffy
  • Vinsmoke Sanji
  • Roronoa Zoro
  • Portgas D. Ace
  • Trafalgar D. Water Law
  • Eustass Kid
  • Crocodile (One Piece)
  • Dracule Mihawk
  • Buggy (One Piece)
  • Akagami no Shanks | Red-Haired Shanks
  • Deal with a Devil
  • Transformation
  • Crossroads Deals & Demons
  • Demons
  • dying
  • Self-Sacrifice

  Summary

  Are they willing to make a deal with the devil to save you?
  Various One piece characters x reader

  Series

  • Part 4 of Monster Piece

  Language:

  English

  Words:

  16,463

  Chapters:

  10/10

  Comments:

  23

  Kudos:

  211

  Bookmarks:

  18

  Hits:

  9,523

• Armoury by Synin (rea_grimm)

  Fandoms: One Piece (Anime & Manga), One Piece (Live Action TV 2023)  

  • General Audiences
  • Graphic Depictions Of Violence, No Archive Warnings Apply
  • F/F, F/M, Gen, M/M
  • Complete Work

  11 Jan 2026

  Tags

  • Graphic Depictions Of Violence
  • No Archive Warnings Apply
  • Monkey D. Luffy/Reader
  • Roronoa Zoro/Reader
  • Roronoa Zoro/Vinsmoke Sanji/Reader
  • Portgas D. Ace/Reader
  • Trafalgar D. Water Law/Reader
  • Eustass Kid/Reader
  • Akagami no Shanks | Red-Haired Shanks/Reader
  • Dracule Mihawk/Reader
  • Crocodile (One Piece)/Reader
  • Akagami no Shanks | Red-Haired Shanks/Buggy/Reader
  • Reader
  • Monkey D. Luffy
  • Roronoa Zoro
  • Sanji (One Piece)
  • Portgas D. Ace
  • Trafalgar D. Water Law
  • Eustass Kid
  • Akagami no Shanks | Red-Haired Shanks
  • Dracule Mihawk
  • Crocodile (One Piece)
  • Buggy (One Piece)
  • Weapons
  • Soulmates
  • Alternate Universe - Soulmates
  • Shapeshifting
  • Magical Tattoos
  • Soul Eater References

  Summary

  AU where people are divided into masters who control a specific type of weapon and weapons that always have one true master. One piece characters x Reader

  Series

  • Part 5 of Monster Piece

  Language:

  English

  Words:

  9,953

  Chapters:

  10/10

  Comments:

  37

  Kudos:

  276

  Bookmarks:

  22

  Hits:

  8,521

• Swordsman & Seraph by Synin (rea_grimm)

  Fandoms: One Piece (Anime & Manga), One Piece (Live Action TV 2023)  

  • Teen And Up Audiences
  • No Archive Warnings Apply
  • F/M
  • Work in Progress

  19 Apr 2026

  Tags

  • No Archive Warnings Apply
  • Dracule Mihawk/Reader
  • Dracule Mihawk & S-Hawk
  • S-Hawk & Reader
  • Roronoa Zoro & S-Hawk
  • Perona & S-Hawk
  • Dracule Mihawk
  • Roronoa Zoro
  • Perona (One Piece)
  • Reader
  • S-Hawk (One Piece)
  • Alternate Universe - Fantasy
  • Demon Mihawk
  • Seraphim
  • Found Family
  • Adopted Children
  • Protective Dracule Mihawk
  • Soft Dracule Mihawk
  • Reader-Insert
  • Domestic Fluff
  • Hurt/Comfort
  • Family Dynamics
  • Angel & Demon Interactions
  • Sibling Love
  • Fluff and Angst
  • supernatural family

  Summary

  A demon swordsman. A celestial child sent to kill him. And a human who chooses love over heaven’s laws. What begins as a battle between light and shadow slowly turns into something neither side expected, a family.

  Series

  • Part 6 of Monster Piece

  Language:

  English

  Words:

  2,676

  Chapters:

  2/?

  Comments:

  2

  Kudos:

  13

  Bookmarks:

  5

  Hits:

  185