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 Big Mom's Strongest - The 'Sweet Commanders' POWERS AND IDENTITIES
    In depth theory talking about who i believe to be the 3 sweet commanders and their powers. - by Joy_Boy
    Updated: Oct 11, 2016
  2. Theory The Extraterrestrial Origins Of The Ancient Kingdom & Celestial Dragons Revealed (Part 1)
    I believe that the Ancient Kingdom & 20 Kings both originated from the moon, "Fairy Vearth". Part 1. - by Saffron Kaizoku
    Updated: Aug 19, 2016
  3. Theory Skypiea, ID 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
  4. Theory Elbaf, Enel and the Norse Mythology
    Connecting the Norse Mythology with the series (857+). - by Aloe Vera
    Updated: Mar 3, 2017
  5. Theory 5 HORSEMEN OF ONE PIECE
    symbolism and foreshadow of horsemen and anti Christ in one piece - by Dave
    Updated: Sep 9, 2016

View All Featured Theories & Speculations

  1. Theory Dragon, His fruit is...?

    What the evidence says concerning Dragon's fruit type
  2. Theory The Extraterrestrial Origins Of The Ancient Kingdom & Celestial Dragons Revealed (Part 1)

    I believe that the Ancient Kingdom & 20 Kings both originated from the moon, "Fairy Vearth". Part 1.
  1. Theories & speculations are being shown from all child categories.
  2. FireFistSabo_Teories
    4/5, 1 rating
  3. Cockycent
    1/5, 1 rating
  4. Mr D G
    5/5, 2 ratings
  5. law is a cool character

    Theory Future Importance of the 6 Emperors of the Underworld

    Theory on whose side, if any, the Emperors of the Underworld will take in the wedding brawl
    4.33333/5, 3 ratings
  6. Able Lightning

    Theory Gear 5th in Wano Kuni

    Just a theory about why I believe Gear 5th WILL! come in Wano Kuni
    4.5/5, 2 ratings
  7. SmuKeyFly

    Theory Devil Fruit Awakening fully explained

    zoan awakening, logia awakening and paramecia awakening. Conquerer's Haki
    3/5, 1 rating
  8. Fx Jolly Roger

    Speculation Forms of Haki in the future

    Talking about the possibilities of Haki that could be reached in the future.
    0/5, 0 ratings
  9. dirtyLarry
    4.66667/5, 6 ratings
  10. vikas

    Speculation The Tea Party Escape and third eyes help

    since it is highly unlikely that plan will succeed. And Puddings powers.
    5/5, 2 ratings
  11. Awaken Fruit
    3.77778/5, 9 ratings
  12. Ryujin sama
    5/5, 1 rating
  13. Sontaran Gaming

    Speculation Predictions for The Near Future

    Some ideas for what will happen during and after Whole Cake Island arc.
    0/5, 0 ratings
  14. NakedPanda
    4.5/5, 4 ratings
  15. Fake Mingo
    5/5, 3 ratings
  16. Ruffy

    Theory Caesar, Sora's drug and Judge

    Caesar made the drug for sora to destroy judges work, thats why he doesnt want to hear his real name
    4/5, 1 rating
  17. Swagtolomeo
    0/5, 0 ratings
  18. Cockycent
    5/5, 1 rating
  19. Siegejaypark
    3.5/5, 2 ratings
  20. Ruffy

    Theory invisible symphonia system and the vinsmokes

    minitheory about the invisible symphonia system earplugs used by reiju and her brothers
    2/5, 1 rating
  21. vikas

    Speculation Question About Reiju and Pudding

    just a question/possibility about reiju and pudding conversation.
    4.66667/5, 3 ratings
    Updated:
    Mar 20, 2017
  22. Awaken Fruit
    3/5, 4 ratings
    Updated:
    Mar 17, 2017
  23. Awaken Fruit
    0/5, 0 ratings
    Updated:
    Mar 16, 2017
  24. Puma D. Luffy
    1.6/5, 5 ratings
    Updated:
    Mar 16, 2017
  25. Zoro.san
    0/5, 0 ratings
    Updated:
    Mar 16, 2017
  26. kinfamous312
    3/5, 1 rating
    Updated:
    Mar 16, 2017
  27. Lokiz
    4/5, 2 ratings
    Updated:
    Mar 16, 2017
  28. Ma D. Monk

    Theory Pudding is NOT gonna shoot..!!

    The wedding mess and plot failure and ch.860 prediction
    0/5, 0 ratings
    Updated:
    Mar 16, 2017
  29. HieraWyche

    Theory Robin Lowkey Pregnant?

    There's something a little weird about her right now.
    3.65/5, 20 ratings
    Updated:
    Mar 14, 2017
  30. BlackWing

    Theory The Will of D

    On the meaning of D initial
    4.83333/5, 6 ratings
    Updated:
    Mar 14, 2017
  31. bennett067958
    1/5, 1 rating
    Updated:
    Mar 14, 2017
  32. Afro Iceman
    4.66667/5, 3 ratings
    Updated:
    Mar 13, 2017
  33. godenel
    3.33333/5, 3 ratings
    Updated:
    Mar 13, 2017
  34. vikas
    3.5/5, 2 ratings
    Updated:
    Mar 12, 2017
  35. NONSENSENAP2
    3/5, 4 ratings
    Updated:
    Mar 11, 2017
  36. munkeh
    0/5, 0 ratings
    Updated:
    Mar 11, 2017
  37. AnonymousStrawHat

    Theory How Oda made up the series and key events related to the end

    This theory is to prove how Oda created all of the races and other things as well.
    4.8/5, 5 ratings
    Updated:
    Mar 11, 2017
  38. Cockycent
    5/5, 7 ratings
    Updated:
    Mar 11, 2017
  39. Gorilla D Harambe
    3.42857/5, 7 ratings
    Updated:
    Mar 10, 2017
  40. Kouhei
    4.4/5, 5 ratings
    Updated:
    Mar 10, 2017
  41. BlackWing
    4.75/5, 8 ratings
    Updated:
    Mar 9, 2017