Summary
- Yakuza Kasen is one of One Piece’s 12 Supreme Grade Blades, wielded by Navy Admiral Issho.
- The sword is a disguised shikomizue, perfectly suited for Issho’s blind character.
- Issho rarely attacks with Yakuza Kasen, using it to channel his Devil Fruit for powerful gravitational attacks.
As a devoted fan of the One Pieces world, I’ve always been captivated by the pivotal role of swordsmanship and the legendary blades that have graced its pages since the series’ inception. From the Twelve Supreme Grade Blades to numerous others that have achieved legendary status, it seems almost impossible for many characters to feel whole without their distinctive weapons at their side. This intrigue has sparked endless discussions among fans about the importance and history of each blade, making us more eager than ever to uncover the secrets hidden within these iconic swords.
In the realm of legendary swords from One Piece, while popular opinion often centers around Roger’s Ace, Mihawk’s Yoru, or Shanks’s Gryphon, Issho’s Yakuza Kasen is a standout cool sword that deserves more attention. As one of the 12 Supreme Grade Blades and in the hands of a Navy Admiral, it appears that not enough fans are discussing Issho and his distinctive weapon. It might be that the way its true essence is revealed will have an impact on this, but even so, Yakuza Kasen remains a significant sword in the annals of One Piece.
What Is Issho’s Yakuza Kasen?
One Of The 12 Supreme Grade Blades
The 12 Superior-Grade Weapons within One Piece represent the 12 most exceptional bladed items featured in the series. Out of the five unveiled thus far, four are swords and one is a naginata. Currently, the revealed Superior-Grade Weapons include Mihawk’s Yoru, Whitebeard’s historical naginata, Murakumogiri, Roger’s Ace, Issho’s Yakuza Kasen, and Shodai Kitetsu. It is somewhat surprising that Issho, a Marine, possesses one of these legendary weapons, as he is currently the only Marine known to wield a Superior-Grade Blade.
This is one of the highest quality blades! Its name is the Yakuza Kasen, also known as a willow-leaf shaped sword.” – Oda disclosing the sword’s name.
“This blade is top-notch! It goes by the name of Yakuza Kasen, which refers to its shikimizue, or willow-leaf shape.” – Oda sharing the sword’s name and characteristics.
In disguise as an ordinary walking cane, Yakuza Kasen – one of Issho’s weapons – is more than meets the eye. Unlike traditional high-grade swords, it conceals its blade within its cane form. This stealthy design catches opponents off guard, making them underestimate the weapon’s potential danger. The cane sword serves as a perfect tool for Issho, a seemingly harmless character who hides incredible strength within his persona, embodying a common theme in the series where appearances can be deceiving.
What Is The History And Powers Of The Sword?
A Wano Blade That Can Channel His Devil Fruit

- Yakuza Kasen Was Made By The Fugetsu Family
- He Rarely Ever Attacks Others With The Sword
Much of the story surrounding Issho’s Yakuza Kasen sword remains shrouded, primarily due to details emerging from a source known as SBS. However, we do have some insights thanks to Oda: The blade was crafted by the renowned blacksmith Fugetsu Kisaburo, hailing from the Fugetsu Family, on the island of Wano. Unfortunately, this family was apparently wiped out by Kaido following Orochi’s seizure of power. Later, the sword left Wano and eventually found its way into Issho’s possession, where it remains today.
It’s worth noting that Issho, unlike other bearers of Supreme Grade Blades, employs an unusual method with Yakuza Kasen. He seldom uses the sword for attacking purposes. Instead, most of his sword usage is defensive, blocking enemy attacks. Moreover, he often uses it to channel his Press-Press Fruit’s energy. However, the sword seems to serve as a potent conduit for Issho’s Devil Fruit, enabling him to effortlessly guide and control gravitational force with Yakuza Kasen.
What Techniques Can Issho Utilize With The Sword?
He Can Use The Sword To Manipulate Gravity

Regarding the unique sword skills of Issho, he employs Yakuza Kasen in his iconic move, Gravito. This attack alters gravity with his sword, enabling him to adjust both the strength and direction of gravitational forces acting on his adversaries. For instance, Admiral Issho can exert a crushing downward force on opponents using his blade. Additionally, he can also harness the power of Moko, a technique that directs gravitational energy into his sword to unleash a powerful burst of force surrounding him.
1. To ensure that integrity remains unstained, always uphold justice with you wherever you go!
2. If acknowledging mistakes tarnishes our reputation, then perhaps we never truly possessed it to begin with!
Even though Yakuza Kasen doesn’t slice through enemies like a traditional weapon might, it appears ideally suited for Issho, who may one day become a Fleet Admiral. The legendary sword seems to boost Issho’s Devil Fruit power, intensifying the strength of his gravitational attacks. Fingers crossed that when Issho reappears in the world of One Piece, fans will get to witness Yakuza Kasen in action again.
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2025-03-27 22:55