One Piece

One Piece (1999 – ...)

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

On August 9, 2026

#134 ▲ 10

134th by attention TV show online

55.4 Attention Score

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photo from the episode

Episode 771 — A Vow Between Two Men - Luffy and Kozuki Momonosuke

Season 18 • One Piece

Released: 2017-01-08 • Action & Adventure/Comedy/Animation

77%

User score

More mysteries of the Kozuki Clan are revealed - and the samurai propose an alliance to help topple Kaido! But Luffy's response will shock the crew... and force the young daimyo to take responsibility!

Episodes

Episode 749
The Sword Technique Heats Up! Law and Zoro Finally Appear!
2016-07-09

Episode 750
A Desperate Situation - Luffy Fights a Battle in Extreme Heat
2016-07-17

Episode 751
The Start of a New Adventure - Arrival at the Mysterious Island, 'Zou'!
2016-07-31

Episode 752
The New Shichibukai - Son of the Legendary Whitebeard Arrives
2016-08-07

Episode 753
A Deadly Elephant Climb - A Great Adventure on the Back of the Giant Elephant!
2016-08-21

Episode 754
Battle Starts! Luffy vs. the Mink Tribe!
2016-08-28

Episode 755
Garchu! The Straw Hat Crew Reunites
2016-09-04

Episode 756
The Counterattack Begins! The Curly Hat Pirates Move Out!
2016-09-11

Episode 757
An Incoming Threat - Jack of the Beasts Pirates!
2016-09-25

Episode 758
The King of the Day! Duke Dogstorm Appears!
2016-10-02

Episode 759
The King of the Night! Master Cat Viper Emerges!
2016-10-09

Episode 760
Destruction of the Capital - Curly Hat Pirates Arrive on Land!
2016-10-16

Episode 761
Race Against Time - The Bond of the Minks and the Crew!
2016-10-23

Episode 762
The Rascal Returns Home - Yonko Big Mom's Assassin
2016-10-30

Episode 763
The Truth Behind His Disappearance - Sanji's Shocking Invitation
2016-11-06

Episode 764
To My Buds! Sanji's Farewell Note!
2016-11-13

Episode 765
Let's Go See Master Nekomamushi
2016-11-20

Episode 766
Luffy's Decision - Sanji on the Brink of Quitting!
2016-11-27

Episode 767
A Volatile Situation! The Dog and the Cat and the Samurai!
2016-12-04

Episode 768
The Third One! Raizo of the Mist, the Ninja, Appears
2016-12-11

Episode 769
A Red Stone! A Guide to the One Piece
2016-12-18

Episode 770
The Secret of the Wano Country - The Kozuki Family and the Poneglyphs
2016-12-25

Episode 771
A Vow Between Two Men - Luffy and Kozuki Momonosuke
2017-01-08

Episode 772
The Legendary Journey - The Dog and the Cat and the Pirate King!
2017-01-15

Episode 773
The Nightmare Returns - The Invincible Jack's Fierce Attack
2017-01-22

Episode 774
A Battle to Defend Zou - Luffy and Zunisha!
2017-01-29

Episode 775
Save Zunisha - The Straw Hat's Rescue Operation!
2017-02-05

Episode 776
Saying Goodbye and Descending from the Elephant - Setting Out to Take Back Sanji!
2017-02-12

Episode 777
To the Reverie - Princess Vivi and Princess Shirahoshi
2017-02-19

Episode 778
To the Reverie - Rebecca and the Sakura Kingdom
2017-02-26

Episode 779
Kaido Returns - An Imminent Threat to the Worst Generation!
2017-03-05

Episode 780
A Hungry Front - Luffy and the Marine Rookies!
2017-03-19

Episode 781
The Implacable Three - A Big Chase After the Straw Hats!
2017-03-25

Episode 782
The Devil's Fist - A Show Down! Luffy vs. Grount
2017-04-02

Episode 783
Sanji's Homecoming! Into Big Mom's Territory!
2017-04-09

Episode 784
Zero and Four! Encountering Germa 66!
2017-04-16

Episode 785
A Deadly Poison Crisis! Luffy and Reiju!
2017-04-23

Episode 786
Totto Land! Emperor Big Mom Appears!
2017-04-30

Episode 787
The Emperor's Daughter! Sanji's Fiancée - Pudding!
2017-05-06

Episode 788
A Massive Attack! Mom's Hunger Pangs!
2017-05-13

Episode 789
The Capital City Falls?! Big Mom and Jimbei!
2017-05-20

Episode 790
The Emperor's Castle! Arriving at the Whole Cake Island!
2017-05-27

Episode 791
A Mysterious Forest Full of Candies! Luffy vs. Luffy?!
2017-06-04

Episode 792
Mom's Assassin! Luffy and the Seducing Woods!
2017-06-11

Episode 793
A Seafaring Kingdom! Germa's King Judge!
2017-06-18

Episode 794
A Battle Between Father and Son! Judge vs. Sanji!
2017-06-25

Episode 795
A Giant Ambition! Big Mom and Caesar!
2017-07-02

Episode 796
The Land of Souls! Mom's Fatal Ability!
2017-07-09

Episode 797
A Top Officer! The Sweet 3 General Cracker Appears!
2017-07-16

Episode 798
An Enemy Worth 800 Million! Luffy vs. Thousand Armed Cracker!
2017-07-22

Episode 799
An All-out Duel! Gear Four vs. the Bis-Bis Ability
2017-07-29

Episode 800
The First and the Second Join! The Vinsmoke Family!
2017-08-05

Episode 801
The Benefactor's Life! Sanji and Owner Zeff!
2017-08-12

Episode 802
An Angry Sanji! The Secret of Germa 66!
2017-08-19

Episode 803
The Past that He Let Go of! Vinsmoke Sanji!
2017-08-26

Information

Episode air date	08.01.2017
Episode runtime	24 min
Episode rating	7.67
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]

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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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