One Piece (Series & Plot)

Theories under this category are related to the main plot and the series as a whole.

Top Theories/Speculations

  1. Theory Ancient Weapons: Astronomy, The real source
    Moons of Pluto, Uranus and Neptune are the inspiration for Ancient Weapons - by CAMUNAI
    Updated: Aug 31, 2017
  2. Theory Journey to Uranus :Winged Race
    4th Ancient Weapon -Devil fruits origins & Secret of Yami Yami no mi - by Dave
    Updated: Mar 28, 2017
  3. Theory Fairy chess in Totland's arc and what could await us (plus Harry potter and Alice)
    Conections between chess games,the current and future arc - by CAMUNAI
    Updated: Jul 15, 2017
  4. Theory Skypiea, Impel Down and Blackbeard inspired by Dante's Divine Comedy (Bonus: Blackbeard's future DF)
    A theory that explains Skypiea, Impel Down and Blackbeard's connection to Dante's Divine Comedy. - by Mr. Tiddles
    Updated: Jan 14, 2017
  5. Theory Elbaf, Enel and the Norse Mythology
    Connecting the Norse Mythology with the series (857+). - by Aloe Vera
    Updated: May 11, 2017

View All Featured Theories & Speculations

  1. Theory Tequila Wolf, the alternate plan of the world government

    Why was Tequila Wolf build and where did the idea originated from?
  2. Theory Wano will be the target for the "Great Cleansing"!

    Let's tie EVERYTHING together. 2 Weeks, Ohara, Reverie, Big Mom, Wano and Elbaf!
  3. Theory Mystery of the Missing Moons

    How is the Plot Connected to the Planet and Its Moons?
  1. Theories & speculations are being shown from all child categories.
  2. GilgameshTheories
    1/5, 3 ratings
  3. Sakkeru
    5/5, 2 ratings
  4. GilgameshTheories
    2/5, 1 rating
  5. Kouhei
    5/5, 3 ratings
  6. GilgameshTheories

    Theory Pudding is in Danger! Sanji's Tragic Future!

    Blackbeard going after Pudding's Devil's Fruit and how that will affect Sanji.
    3/5, 2 ratings
  7. GilgameshTheories
    0/5, 0 ratings
  8. King of beasts kaido
    3.83333/5, 6 ratings
    Updated:
    Jan 12, 2019
  9. TheDrStrange
    4/5, 2 ratings
    Updated:
    Jan 11, 2019
  10. DarklordRottes
    2/5, 6 ratings
    Updated:
    Jan 11, 2019
  11. Anonymous123

    Speculation The final war has already begun

    FInal war will be more like a saga than a self contained arc and wano/reveire is just part 1
    3/5, 2 ratings
    Updated:
    Jan 8, 2019
  12. RUgly Slinks

    Theory Oda Hinted Future Arcs In Enel Cover Story

    Future Main Story Arcs Were Foreshadowed By Oda In Enel Cover Story
    4.6/5, 5 ratings
    Updated:
    Jan 5, 2019
  13. Rej
    5/5, 2 ratings
    Updated:
    Jan 4, 2019
  14. Sakkeru
    4.3/5, 10 ratings
    Updated:
    Jan 4, 2019
  15. Knee D.

    Theory The final third of One Piece

    Elbaf, the Sorbet Kingdom, the Moon, New Marineford/Mariejois, and the final war.
    5/5, 4 ratings
    Updated:
    Jan 2, 2019
  16. Ashurockerz
    1.5/5, 2 ratings
    Updated:
    Jan 2, 2019
  17. Critical Mindset
    4.66667/5, 3 ratings
    Updated:
    Jan 2, 2019
  18. Monkeylover
    5/5, 2 ratings
    Updated:
    Jan 2, 2019
  19. Sniper king ussop
    2/5, 6 ratings
    Updated:
    Jan 2, 2019
  20. Barnesy

    Theory Lady Toki's Origin | Will of D

    Where did Lady Toki come from? The Void Century? Raftel? I believe it to be both
    3.5/5, 2 ratings
    Updated:
    Jan 1, 2019
  21. King of beasts kaido
    4.25/5, 4 ratings
    Updated:
    Jan 1, 2019
  22. Donal D. Trump
    5/5, 4 ratings
    Updated:
    Dec 31, 2018
  23. Sniper king ussop
    4.5/5, 2 ratings
    Updated:
    Dec 30, 2018
  24. Mochi Mochi Katakuri Desu
    4/5, 3 ratings
    Updated:
    Dec 20, 2018
  25. Mochi Mochi Katakuri Desu
    4.2/5, 5 ratings
    Updated:
    Dec 15, 2018
  26. 568A

    Speculation Horo Horo no mi's foreshadowing?

    Does Perona's Devil Fruits usage foreshadow things?
    4.64706/5, 17 ratings
    Updated:
    Dec 15, 2018
  27. Nesola

    Speculation Where is the Nidai Kitetsu?

    The sword that Zoro desperately wants is missing
    2.33333/5, 3 ratings
    Updated:
    Dec 10, 2018
  28. Donal D. Trump
    2.33333/5, 3 ratings
    Updated:
    Dec 9, 2018
  29. Kizoku. LyLord

    Speculation The Strange Origins of Devil Fruits

    Are some Paramecias not to crazy to exsist... on there own? I have no proof, just a suspicion.
    1/5, 1 rating
    Updated:
    Dec 8, 2018
  30. Jace1
    4/5, 3 ratings
    Updated:
    Dec 7, 2018
  31. shawnfrostmax
    4/5, 1 rating
    Updated:
    Dec 7, 2018
  32. Man of Theory
    3.5/5, 2 ratings
    Updated:
    Dec 4, 2018
  33. Mr. Mister
    2.5/5, 2 ratings
    Updated:
    Dec 3, 2018
  34. King of beasts kaido

    Theory Elbalf : will take a Major Dive into Norse Mythology..Odin?Thor? Im? dragon & the Great Kingdom

    Did Im-Sama start Ragnarok? did Elbalf ally with the world Government to fight The Great Kingdom??
    4.7/5, 10 ratings
    Updated:
    Nov 29, 2018
  35. Donal D. Trump
    5/5, 4 ratings
    Updated:
    Nov 28, 2018
  36. flappy
    1/5, 2 ratings
    Updated:
    Nov 25, 2018
  37. vikas
    4.33333/5, 6 ratings
    Updated:
    Nov 26, 2018
  38. Erkan12
    2.66667/5, 3 ratings
    Updated:
    Nov 24, 2018
  39. Jarettz

    Theory Hiyori Revealed

    Hiyori has been infront of us since the beginning
    3/5, 3 ratings
    Updated:
    Nov 21, 2018
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