One Piece

One Piece (1999 – ...)

1999 • 23 seasons • Action & Adventure, Comedy • TV-14

On August 8, 2026

#918 ▼ 907

918th by attention TV show online

45.2 Attention Score

Streaming on See all

Overview Watch Cast Seasons (23) Episodes Ranked Similar Videos Images

photo from the episode

Episode 17 — Barto's Secret Room

Season 0 • One Piece

Released: 2021-12-26 • Action & Adventure/Comedy/Animation

55%

User score

Bartolomeo and Otama look back on Luffy and the Straw Hat Crew's adventures in the Land of Wano. Otama tells Bartolomeo about her meeting with Luffy, and the events leading up to the fierce battle with Kaido.

Episodes

Episode 1
Contingency Plan. Complete Summary One Piece
1999-12-22

Episode 2
Adventure in the Ocean's Navel
2000-12-20

Episode 3
Open Upon the Great Sea! A Father's Huge, HUGE Dream!
2003-04-06

Episode 4
Protect! The Last Great Performance
2003-12-14

Episode 5
The Detective Memoirs of Chief Straw Hat Luffy
2005-12-18

Episode 6
New Year Special: Special Report - Secret of the Straw Hat Pirates!
2006-01-03

Episode 7
Episode of Nami: Tears of a Navigator and the Bonds of Friends
2012-08-25

Episode 8
Episode of Luffy: Adventure on Hand Island
2012-12-15

Episode 9
Glorious Island
2013-01-06

Episode 10
Episode of Merry: The Tale of One More Friend
2013-08-24

Episode 11
3D2Y: Overcome Ace’s Death! Luffy’s Vow to his Friends
2014-08-30

Episode 12
Episode of Sabo: Bond of Three Brothers - A Miraculous Reunion and an Inherited Will
2015-08-22

Episode 13
Adventure of Nebulandia
2015-12-19

Episode 14
Heart of Gold
2016-07-16

Episode 15
Episode of East Blue - Luffy and His 4 Crewmates' Big Adventure
2017-08-26

Episode 16
Episode of Sky Island
2018-08-25

Episode 17
Barto's Secret Room
2021-12-26

Episode 18
A Special Episode to Admire Zoro-senpai and Sanji-senpai! Barto's Secret Room 2!
2022-05-01

Episode 19
A Comprehensive Anatomy! The Legend of Kozuki Oden!
2022-06-26

Episode 20
The Captain's Log of the Legend! Red-Haired Shanks!
2022-08-28

Episode 21
A Comprehensive Anatomy! Fierce Fight! The Five from the New Generation
2022-10-09

Episode 22
Recapping Fierce Fights! Straw Hats vs. Tobi Roppo
2022-12-25

Episode 23
Recapping Fierce Fights! Zoro vs. a Lead Performer!
2023-05-14

Episode 24
Recapping Fierce Fights! The Countercharge Alliance vs. Big Mom
2023-06-18

Episode 25
Luffy-senpai Support Project! Barto's Secret Room 3!
2023-08-27

Episode 26
Luffy-senpai Support Project! Barto's Secret Room 4!
2023-10-08

Episode 27
A Very Special Feature! Momonosuke's Road to Becoming a Great Shogun
2023-12-24

Episode 28
A Project to Fully Enjoy! 'Surgeon of Death' Trafalgar Law
2024-02-04

Episode 29
The Log of the Rivalry! The Straw Hats vs. Cipher Pol
2024-04-14

Episode 30
Making History! The Turbulent Old and New Four Emperors!
2024-06-16

Episode 31
The Log of the Turbulent Revolution! The Revolutionary Army Maneuvers in Secret!
2024-08-25

Episode 32
Unwavering Justice! The Navy's Proud Log!
2024-09-29

Episode 33
ONE PIECE FAN LETTER
2024-10-20

Episode 34
Egghead Sosyuhen Special
2025-04-05

Episode 35
Dr. Chopper's Adventure Checkup -The Ballad of a Father and Daughter-
2025-05-11

Episode 36
Dr. Chopper's Adventure Checkup -Good Friends at a Crossroad-
2025-06-22

Episode 37
Dr. Chopper's Adventure Checkup -The Proud Dream of the Giants-
2025-08-31

Episode 38
Dr. Chopper's Adventure Checkup -Traitors' Masquerade-
2025-10-12

Episode 39
Dr. Chopper's Adventure Checkup -The Last Records That a Genius Left Behind-
2025-11-23

Information

Episode air date	26.12.2021
Episode runtime	24 min
Episode rating	5.50
Genres	Action & Adventure / Comedy / Animation
TMDB series rating	8.8
IMDb series rating	9.0
Series status	Returning series
Age rating	14+
Country	JP

Trailer

Additional videos

Happy 26th Anniversary to ONE PIECE [Subtitled]

Happy 26th Anniversary to ONE PIECE [Subtitled]

▶

Cast

Mayumi Tanaka
Monkey D. Luffy (voice)

Kazuya Nakai
Roronoa Zoro (voice)

Mari Yaguchi
요코 (성우)

Akemi Okamura
Nami (voice)

Kappei Yamaguchi

Kappei Yamaguchi
Usopp (voice)

Hiroaki Hirata
Sanji (voice)

Ikue Otani
Tony Tony Chopper (voice)

Yuriko Yamaguchi

Yuriko Yamaguchi
Nico Robin (voice)

Kazuki Yao
Franky (voice)

Katsuhisa Houki

Katsuhisa Houki
Jinbe (voice)

Cho
Brook (voice)

Reiko Takagi
Jewelry Bonney (voice)

Yohei Tadano
Dr. Vegapunk (voice)

Hideyuki Tanaka

Hideyuki Tanaka
돈키호테 도플라밍고 (성우)

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