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 Journey to Uranus :Winged Race
    4th Ancient Weapon -Devil fruits origins & Secret of Yami Yami no mi - by Dave
    Updated: Mar 28, 2017
  2. Theory Elbaf, Enel and the Norse Mythology
    Connecting the Norse Mythology with the series (857+). - by Aloe Vera
    Updated: Mar 3, 2017
  3. 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
  4. 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
  5. 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

View All Featured Theories & Speculations

  1. Theory Elbaf, Enel and the Norse Mythology

    Connecting the Norse Mythology with the series (857+).
  2. Theory Dragon, His fruit is...?

    What the evidence says concerning Dragon's fruit type
  3. 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.
  4. Theory Journey to Uranus :Winged Race

    4th Ancient Weapon -Devil fruits origins & Secret of Yami Yami no mi
  1. Theories & speculations are being shown from all child categories.
  2. PaperFlower
    4.91667/5, 12 ratings
  3. D Rayo

    Theory The Dimension Theory

    could the One Piece be inside a df's dimension?
    4/5, 1 rating
  4. D Rayo

    Theory The Poneglyphs' Immunity

    could the poneglyphs be chemically related to pyrobloin and seastone?
    4/5, 2 ratings
  5. Rinnegan Master
    2/5, 3 ratings
  6. bigmoneyotaku9000
    2.33333/5, 3 ratings
  7. Vandenreich
    5/5, 11 ratings
  8. BirdmanMarco
    4/5, 1 rating
  9. BarryoneP
    2.5/5, 2 ratings
  10. Tatsu D. John
    5/5, 4 ratings
  11. Naomi Rose

    Theory Monet is based of Tinkerbell from the story Peterpan. more inside!

    possible return, a Maybe! Monet and Doflamingo based of peterpan story, You be the judge.
    4.90909/5, 11 ratings
  12. 99cent Hitman
    4/5, 2 ratings
  13. Romper13_i_got_this
    1/5, 3 ratings
  14. Roronoa D. Law
    3.5/5, 2 ratings
  15. Normalguy
    3/5, 2 ratings
  16. Taldomix
    4.66667/5, 3 ratings
  17. giveordestroy
    2/5, 2 ratings
  18. Treemi95

    Speculation Gol D. Roger's soul

    Luffy is Luffy,but Gomu Gomu no is Roger
    1.5/5, 2 ratings
  19. Tatsu D. John
    2/5, 3 ratings
    Updated:
    Apr 20, 2017
  20. D Rayo
    0/5, 0 ratings
    Updated:
    Apr 20, 2017
  21. Red Otaku

    Theory How Luffy Will Become A Yonko & The Straw Hat Crew VS The Three Admirals

    yonko, luffy, emperor, four emperors, theory, shanks, kaido, big mom, admirals, vs, versus
    3.25/5, 4 ratings
    Updated:
    Apr 20, 2017
  22. thabo Motaung
    0/5, 0 ratings
    Updated:
    Apr 20, 2017
  23. Ma_D._Monk
    1.5/5, 4 ratings
    Updated:
    Apr 19, 2017
  24. vikas
    3.33333/5, 3 ratings
    Updated:
    Apr 18, 2017
  25. kikX
    3/5, 1 rating
    Updated:
    Apr 17, 2017
  26. kondor
    0/5, 0 ratings
    Updated:
    Apr 15, 2017
  27. animelover421

    Theory ZOU's Destination Revealed | the Unsolved mystery of Zou explained | One piece ワ ンピース

    ZOU's final Destination Revealed | the Unsolved mystery of Zou explained | One piece ワ ンピース
    3/5, 1 rating
    Updated:
    Apr 15, 2017
  28. Ramic44

    Theory Wano arc possibility...

    Could the Shogun from Wano actually be KUINA....?
    3.8/5, 5 ratings
    Updated:
    Apr 14, 2017
  29. Kinryuu Ruka
    2.66667/5, 3 ratings
    Updated:
    Apr 13, 2017
  30. Abiz
    4.5/5, 4 ratings
    Updated:
    Apr 13, 2017
  31. ronoroa D luffy
    0/5, 0 ratings
    Updated:
    Apr 12, 2017
  32. DevilChild93

    Speculation Ancient Weapons : Sailor Moon Outer Senshi

    The Ancient Weapons in One Piece might be based on Sailor Moon's outer senshi
    4.66667/5, 3 ratings
    Updated:
    Apr 11, 2017
  33. Kaido Jr.
    2/5, 1 rating
    Updated:
    Apr 11, 2017
  34. Joy_Boy
    4.66667/5, 3 ratings
    Updated:
    Apr 9, 2017
  35. Wolfram87

    Speculation Big Moms past!

    Whitebeard, Kaido and Big Mom share the same history and mother caramels role in it.
    4.88889/5, 9 ratings
    Updated:
    Apr 9, 2017
  36. OmarAjamy99
    2/5, 10 ratings
    Updated:
    Apr 9, 2017
  37. Dash444
    1/5, 3 ratings
    Updated:
    Apr 8, 2017
  38. Raizo
    0/5, 0 ratings
    Updated:
    Apr 8, 2017
  39. luffyisgod
    1/5, 2 ratings
    Updated:
    Apr 8, 2017
  40. BroZoro

    Speculation Fighting at the Wedding

    Some possible unfolding within the Vinsmoke/Charlotte Wedding
    4/5, 4 ratings
    Updated:
    Apr 7, 2017
  41. Timmy
    0/5, 0 ratings
    Updated:
    Apr 7, 2017