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 Elbaf, Enel and the Norse Mythology
    Connecting the Norse Mythology with the series (857+). - by Aloe Vera
    Updated: May 11, 2017
  5. Theory Will of D -2 :Truth of Mariejois
    Darkness of World Govt - by Dave
    Updated: Jun 12, 2017

View All Featured Theories & Speculations

  1. Theory The Marines interference foreshadowed and built up

    Punk Hazard foreshadowing // Kiku, Zoro, Hiyori and Tashigi // Law's deathflag // Luffy vs Sentomaru
  2. 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.
  3. Theory Barbarossa and Shanks The Emperors

    The commonality between Emperor Barbarossa and Emperor Shanks.
  1. Theories & speculations are being shown from all child categories.
  2. 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
  3. darkpit06
    4/5, 3 ratings
    Updated:
    Feb 2, 2019
  4. BKumafangirl67
    3/5, 3 ratings
    Updated:
    Feb 2, 2019
  5. Donal D. Trump
    5/5, 5 ratings
    Updated:
    Feb 1, 2019
  6. 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
  7. 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
  8. 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
  9. 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
  10. Rej
    5/5, 12 ratings
    Updated:
    Jan 27, 2019
  11. Syphonir
    3/5, 1 rating
    Updated:
    Jan 27, 2019
  12. Dr Hogback

    Theory The origin and history of Devil Fruits

    Fitting together Winged Races, the AK, Im, Davy Jones, Raftel and more!
    4.85714/5, 14 ratings
    Updated:
    Jan 27, 2019
  13. jinz
    4.61538/5, 13 ratings
    Updated:
    Feb 2, 2019
  14. Donal D. Trump

    Theory Luffy's heritage: Monkey Business

    We are exploring Luffy's unusual hero story and attempt to puzzle his heritage out.
    5/5, 4 ratings
    Updated:
    Jan 22, 2019
  15. GilgameshTheories
    1/5, 5 ratings
    Updated:
    Jan 18, 2019
  16. Sakkeru

    Theory Miyazaki, The Ancient Kingdom, and Understanding Oda

    Being realistic about a mangaka may make our predictions stronger
    5/5, 5 ratings
    Updated:
    Jan 16, 2019
  17. GilgameshTheories
    2/5, 1 rating
    Updated:
    Jan 15, 2019
  18. Kouhei

    Theory Crafting Poneglyphs

    Connection with Kitetsu and Liquor Iron Ore
    5/5, 3 ratings
    Updated:
    Jan 14, 2019
  19. 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
    Updated:
    Jan 13, 2019
  20. GilgameshTheories
    0/5, 0 ratings
    Updated:
    Jan 13, 2019
  21. King of beasts kaido
    3.42857/5, 7 ratings
    Updated:
    Jan 12, 2019
  22. DarklordRottes
    2/5, 5 ratings
    Updated:
    Jan 11, 2019
  23. 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
  24. RUgly Slinks

    Theory Oda Hinted Future Arcs In Enel Cover Story

    Future Main Story Arcs Were Foreshadowed By Oda In Enel Cover Story
    4.66667/5, 6 ratings
    Updated:
    Jan 5, 2019
  25. Rej
    5/5, 2 ratings
    Updated:
    Jan 4, 2019
  26. Sakkeru
    4.3/5, 10 ratings
    Updated:
    Jan 4, 2019
  27. Knee D.

    Theory The final third of One Piece

    Elbaf, the Sorbet Kingdom, the Moon, New Marineford/Mariejois, and the final war.
    4.69231/5, 13 ratings
    Updated:
    Jan 2, 2019
  28. Ashurockerz
    1.5/5, 2 ratings
    Updated:
    Jan 2, 2019
  29. Critical Mindset
    4.75/5, 4 ratings
    Updated:
    Jan 2, 2019
  30. Monkeylover
    5/5, 3 ratings
    Updated:
    Jan 2, 2019
  31. Sniper king ussop
    2/5, 6 ratings
    Updated:
    Jan 2, 2019
  32. 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
  33. King of beasts kaido
    4.25/5, 4 ratings
    Updated:
    Jan 1, 2019
  34. Donal D. Trump
    5/5, 4 ratings
    Updated:
    Dec 31, 2018
  35. Sniper king ussop
    4.5/5, 2 ratings
    Updated:
    Dec 30, 2018
  36. Donal D. Trump

    Theory Tequila Wolf, the alternate plan of the world government

    Why was Tequila Wolf build and where did the idea originated from?
    4.92308/5, 13 ratings
    Updated:
    Dec 23, 2018
  37. Mochi Mochi Katakuri Desu
    4/5, 3 ratings
    Updated:
    Dec 20, 2018
  38. Mochi Mochi Katakuri Desu
    4.2/5, 5 ratings
    Updated:
    Dec 15, 2018
  39. 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
  40. Nesola

    Speculation Where is the Nidai Kitetsu?

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