CinemaOSAnime · 2026 · ONA · 13 eps

BAKI-DOU: The Invincible Samurai

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Musashi Miyamoto — the ultimate symbol of strength — descends into an underground fighting arena where the use of weapons is permitted. Underground fighters including Doppo Orochi, Goki Shibukawa and Sea King Retsu square off in succession against Musashi and his godlike strength. It’s sword versus fist in the most heart-pounding and deadly battles yet, where defeat means certain death. Be prepared to be blown away by Baki and the other underground fighters as they bravely take on this new battle to determine the strongest fighter in human history.

StudioTMS Entertainment

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Format: ONA
Episodes: 13
Status: Finished
Season: Winter 2026
Duration: 24 min
Source: Manga

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Episodes

25 available

25 Episodes

Ep 14.6

The Unstoppable Yawn

With the greatest father-son battle on earth concluded, Baki experiences overwhelming boredom. Meanwhile, Tokugawa advances his unprecedented experiment.

Ep 24.6

The Beat

As the other martial artists battle restlessness, Kaoru Hanayama asks Tokugawa for a favor. Deep underground, the cloning project enters its final phase.

Ep 36.7

The Countenance of Musashi

As Professor John accepts Sabuko's arcane methods against scientific reasoning, Hanayama gears up for an all-out fistfight with Yujiro on Tokyo's streets.

Ep 46.7

Boy

After facing Japan's greatest modern swordsman, the peerless Musashi Miyamoto demands the most skilled fighters in the country. Baki steps forward.

Ep 54.6

Otherworldly Strength

Baki unleashes his fastest strike — but the samurai is faster. Later, as Musashi roams the city, his actions catch the attention of other martial artists.

Ep 64.6

Real Sword

The first to move is Doppo Orochi. After a brief tussle, he asks Musashi to use a real blade. How will God's Hand fare against the sword saint's steel?

Ep 76.0

Feather

Sea King Retsu arrives to face Musashi and trains intensively under the watchful eye of Sea Emperor Kaku to master the secret technique: Xiaoli.

Ep 86.5

You Are Defeated

The battle between kenpo master Retsu and sword master Musashi Miyamoto begins! While Retsu unleashes long-range weapon attacks, Musashi closes in!?

Ep 99.8

Sea King Retsu

Barely standing after Musashi's barrage of brutal attacks, Retsu forces his broken body forward and adopts a familiar stance. Can he turn the tide?

Ep 106.5

Sekigahara

The deathmatch between Retsu and Musashi comes to a devastatingly brutal conclusion. Baki visits Izo Motobe for guidance and flies into a rage.

Ep 116.5

Buddy

After defeating Japan's kendo champ, Musashi faces jujutsu master Goki Shibukawa, who greets the samurai with a firm handshake — and a punch to the face.

Ep 126.5

Tough Body

The strongest being on Earth clashes with the strongest samurai in history at the Tokugawa estate! Yujiro demands Musashi face him with two swords.

Ep 136.5

Practical Fighter

Jack Hammer arrives at the Tokugawa estate hoping to fight Musashi, but first must defeat Motobe, who's determined to be the next to take on the samurai.