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 Will of D -2 :Truth of Mariejois
    Darkness of World Govt - by Dave
    Updated: Jun 12, 2017
  5. 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

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 The origin and history of Devil Fruits

    Fitting together Winged Races, the AK, Im, Davy Jones, Raftel and more!
  1. Theories & speculations are being shown from all child categories.
  2. Zagrash
    4.5/5, 2 ratings
  3. Rej
    5/5, 2 ratings
  4. Critical Mindset
    5/5, 9 ratings
  5. TheFrenchNewbie
    4.66667/5, 6 ratings
  6. Nalio
    4.75/5, 4 ratings
  7. BucketLover

    Speculation Nami's connection to Romanian lore and a bigger role to play in Wano

    Nami and her abilities may be inspired from Solomonars, Romanian weather wizards.
    5/5, 7 ratings
    Updated:
    Mar 15, 2019
  8. Rej

    Speculation Kawamatsu is a Kappa!

    I believe Kawamatsu is a Kappa or has the Kappa Zoan.
    4.625/5, 8 ratings
    Updated:
    Mar 15, 2019
  9. Monstertrio333
    3/5, 2 ratings
    Updated:
    Mar 13, 2019
  10. sschwartz0121

    Speculation Kid's bounty and his role in taking down kaido

    Kid's Bounty will have a huge jump after wano and he will play a big part in defeating kaido
    4.5/5, 2 ratings
    Updated:
    Mar 13, 2019
  11. Charlotte Horchata
    4/5, 2 ratings
    Updated:
    Mar 5, 2019
  12. Ashura the demon
    5/5, 1 rating
    Updated:
    Mar 4, 2019
  13. Strawzeus

    Speculation Momo is Uranus

    Momo being Uranus because of his power of talking with creatures
    1.5/5, 2 ratings
    Updated:
    Mar 4, 2019
  14. Mochi Mochi Katakuri Desu
    3/5, 3 ratings
    Updated:
    Mar 3, 2019
  15. Critical Mindset
    5/5, 14 ratings
    Updated:
    Feb 28, 2019
  16. Monkey D. Draggin

    Speculation "Highest Bounty" Dragon & Shanks

    I will explain my thoughts on this from two perspectives; An author's and a story.
    4.5/5, 6 ratings
    Updated:
    Feb 28, 2019
  17. Joaquin Sablada

    Theory Bakunawa

    Blackbeard's darkness quake dragon originate from the philippines
    4/5, 4 ratings
    Updated:
    Feb 23, 2019
  18. King of beasts kaido
    4.66667/5, 3 ratings
    Updated:
    Feb 21, 2019
  19. Rej

    Speculation Speculating FUTURE arcs: Estimating a prognosis!

    Using some plotmaterial to deliver you my picture of how things will evolve.
    4.88889/5, 9 ratings
    Updated:
    Feb 19, 2019
  20. kikX
    3/5, 1 rating
    Updated:
    Feb 17, 2019
  21. Mr. Mister
    5/5, 2 ratings
    Updated:
    Feb 17, 2019
  22. Drackend
    4.4/5, 5 ratings
    Updated:
    Feb 16, 2019
  23. Man of Theory
    5/5, 1 rating
    Updated:
    Feb 16, 2019
  24. Roll Credits

    Speculation Kyoshiro's plan to become Shogun

    Kyoshiro's working with Komurasaki to marry Hiyori to become Shogun.
    5/5, 2 ratings
    Updated:
    Feb 16, 2019
  25. Herr Krokodil

    Speculation The True power of Logia

    Logia's elemental abilties go far beyond what the elements can do naturally.
    4.8/5, 10 ratings
    Updated:
    Feb 16, 2019
  26. Cabinboy126
    3/5, 1 rating
    Updated:
    Feb 15, 2019
  27. Shlomy Kroizer

    Theory The identities of Hiyori and Komurasaki.

    discussing - Hiyori, Komurasaki, Lady Toki, and Witching Hour Boy.
    2/5, 3 ratings
    Updated:
    Feb 9, 2019
  28. MyNameIsVoodoo
    2/5, 1 rating
    Updated:
    Feb 9, 2019
  29. kikX
    1/5, 2 ratings
    Updated:
    Feb 8, 2019
  30. TheDrStrange

    Speculation What i Think Uranus is and how it could be used

    In This ill Be talking about what i think uranus is and how it coudl eb used as a wepon
    4.33333/5, 3 ratings
    Updated:
    Feb 7, 2019
  31. TheDrStrange
    2/5, 2 ratings
    Updated:
    Feb 5, 2019
  32. Donal D. Trump

    Theory Shanks backstory: A hat from the past

    Let's explore Shanks ancestor and the true originator of the straw hat!
    5/5, 12 ratings
    Updated:
    Feb 5, 2019
  33. darkpit06
    4/5, 3 ratings
    Updated:
    Feb 2, 2019
  34. BKumafangirl67
    3/5, 3 ratings
    Updated:
    Feb 2, 2019
  35. Donal D. Trump
    5/5, 5 ratings
    Updated:
    Feb 1, 2019
  36. Polly

    Speculation Chapter 903 was foreshadowed all the way back in Chapter 49

    Chapter 49 heavily foreshadowed the events that occurred in chapter 903.
    4.4/5, 5 ratings
    Updated:
    Feb 1, 2019
  37. Polly

    Speculation Kaido is one of the founding Celestial Dragons

    The founding Celestial Dragons are actual dragons.
    2.8/5, 5 ratings
    Updated:
    Feb 1, 2019
  38. Kouhei

    Theory VoAT, Kitetsu and the Poneglyphs Essence

    Theory about the essence of poneglyphs, conection with Kitetsu swords and the Voice of All Things
    4/5, 1 rating
    Updated:
    Jan 30, 2019
  39. Critical Mindset

    Theory Fire-breathing dinosaurs: the rude "awakening" of the dragon-dragon zoans. Chapter 931+

    A scriptural and historical perspective on One Piece coupled with some pyrotechnical science.
    4.64286/5, 14 ratings
    Updated:
    Jan 29, 2019
  40. Rej
    5/5, 12 ratings
    Updated:
    Jan 27, 2019
  41. Syphonir
    3/5, 1 rating
    Updated:
    Jan 27, 2019
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