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

View All Featured Theories & Speculations

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

    What the evidence says concerning Dragon's fruit type
  2. Speculation Oda's Path in the Snow

    Predicting the Events of 2017 with Deliberate Color Page Clues
  3. Theory Ancient Weapons: Astronomy, The real source

    Moons of Pluto, Uranus and Neptune are the inspiration for Ancient Weapons
  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.
  1. Theories & speculations are being shown from all child categories.
  2. TheoryTheory3
    0/5, 0 ratings
  3. Levosire
    0/5, 0 ratings
  4. Kouhei
    4/5, 1 rating
  5. Cypher
    4.66667/5, 6 ratings
  6. Swaampii Sensei
    0/5, 0 ratings
  7. Skarbang
    5/5, 2 ratings
    Updated:
    Apr 17, 2018
  8. MasterD

    Theory In Depth analysis of Wano: The summary theory

    Analyses of the territory of wano/kuni parallels with japan and much more
    5/5, 2 ratings
    Updated:
    Apr 17, 2018
  9. Theo Ries
    4.83333/5, 6 ratings
    Updated:
    Apr 17, 2018
  10. Swaampii Sensei

    Theory Blackbeard and Vegapunk part 2

    How I think Blackbeard was able to obtain more than one Devilfruit.
    0/5, 0 ratings
    Updated:
    Apr 16, 2018
  11. Swaampii Sensei
    0/5, 0 ratings
    Updated:
    Apr 16, 2018
  12. Rej Discussions
    4.66667/5, 6 ratings
    Updated:
    Apr 14, 2018
  13. Afro Iceman
    0/5, 0 ratings
    Updated:
    Apr 14, 2018
  14. Asme
    2.5/5, 2 ratings
    Updated:
    Apr 14, 2018
  15. ZisforZoro

    Speculation What is the One Piece

    theory of the treasure and the ancient kingdom
    0/5, 0 ratings
    Updated:
    Apr 14, 2018
  16. kyross123

    Speculation What if...

    The will of the Ancients... "One Piece".
    1/5, 1 rating
    Updated:
    Apr 12, 2018
  17. Skarbang
    4.33333/5, 3 ratings
    Updated:
    Apr 12, 2018
  18. Nakama
    4/5, 5 ratings
    Updated:
    Apr 10, 2018
  19. King of beasts kaido
    0/5, 0 ratings
    Updated:
    Apr 9, 2018
  20. vikas

    Speculation A look at Florian triangle.

    The secret behind Florian triangle might play major role in future plot and one piece treasure.
    0/5, 0 ratings
    Updated:
    Apr 8, 2018
  21. Bishop D. George
    4.33333/5, 6 ratings
    Updated:
    Apr 6, 2018
  22. King of beasts kaido
    4.2/5, 5 ratings
    Updated:
    Apr 6, 2018
  23. Blackleg

    Speculation Giant Help!! The Revenge of the proud Giant Warriors.

    Help for the Strawhats ! The Revenge of the proud Giants Warriors !!
    2/5, 1 rating
    Updated:
    Apr 5, 2018
  24. Sanathx
    3/5, 1 rating
    Updated:
    Apr 5, 2018
  25. D jango

    Speculation Three options to ending WCI arc

    with the help of fishes, from the water and re-assemble him
    2.66667/5, 3 ratings
    Updated:
    Apr 4, 2018
  26. Blackleg
    3.5/5, 6 ratings
    Updated:
    Apr 3, 2018
  27. D jango

    Theory There is Bob Dylan between Pirate King and The Revolutionary

    How many times must the cannon balls fly, before they're forever banned?
    5/5, 3 ratings
    Updated:
    Apr 3, 2018
  28. WhiteDragon
    3.66667/5, 3 ratings
    Updated:
    Apr 3, 2018
  29. D jango

    Theory The Legend of Monkey Hero

    The famous 3 MONKEY -- speak no evil, hear no evil, see no evil
    3/5, 1 rating
    Updated:
    Apr 2, 2018
  30. sEnkaaa

    Theory What / Who are ancients weapons

    About ancients weapons, will of the D, and One Piece end
    0/5, 0 ratings
    Updated:
    Apr 2, 2018
  31. bird
    2.33333/5, 3 ratings
    Updated:
    Mar 31, 2018
  32. Vic501
    4/5, 2 ratings
    Updated:
    Mar 31, 2018
  33. Rej Discussions
    4.91667/5, 12 ratings
    Updated:
    Apr 2, 2018
  34. Sanathx

    Speculation Big mom isn't dreaming

    Contradiction to the theory saying that big mom is in a trance
    3.66667/5, 3 ratings
    Updated:
    Mar 31, 2018
  35. Sanathx
    3/5, 1 rating
    Updated:
    Mar 31, 2018
  36. Bishop D. George
    4/5, 3 ratings
    Updated:
    Mar 31, 2018
  37. Jeffrey zorofan
    3.75/5, 4 ratings
    Updated:
    Mar 31, 2018
  38. SSsagemode
    4.5/5, 4 ratings
    Updated:
    Mar 30, 2018
  39. Syskill
    4.2/5, 5 ratings
    Updated:
    Mar 30, 2018
  40. Skarbang

    Theory It's all a Lie so tell me the truth

    Into the Head of the Yonko big mom , Predicting the end of Whole cale island
    5/5, 3 ratings
    Updated:
    Apr 14, 2018
  41. Achyut Poudel
    4.5/5, 2 ratings
    Updated:
    Mar 28, 2018