In the world of Jujutsu Kaisen, flashy cursed techniques, mythical weapons, and supernatural fights dominate the battlefield. But every once in a while, a character comes along who defies the usual tropes—not with overwhelming power, but with pure precision and practicality. Enter Kento Nanami, the ex-salaryman turned jujutsu sorcerer whose weapon of choice—a humble cleaver wrapped in cloth—has become one of the most quietly iconic tools in the series.
Unlike blades wielded by other jujutsu warriors, Nanami’s cleaver is no legendary cursed object or spiritual artifact. It's a simple, durable blade made deadly by the man who wields it—and by the power of his mind. In this article, we’re going to break down the full lore behind Nanami’s weapon, from its design and symbolism to how it reflects the deeper layers of his personality, technique, and role within Jujutsu Kaisen.
What Is Nanami’s Cleaver?
Nanami’s cleaver is often mistaken for a butcher’s knife, machete, or utility blade. Visually, it lacks the elegance of a katana or the menace of a cursed sword. Instead, it appears blunt, rectangular, and purely functional. This design is no accident. It’s a perfect physical representation of Nanami himself—efficient, clean-cut, and no-nonsense.
The blade is always wrapped in white cloth, suggesting careful control and precision, and perhaps even a sense of ceremonial professionalism. He doesn't use a scabbard or a flashy holster. Like a craftsman clocking in for work, Nanami wields his weapon as if it’s a tool, not a weapon of war.
Though it doesn’t carry an official name in the series, fans universally refer to it as Nanami’s cleaver—and that simplicity has only strengthened its identity within the fandom.
It’s Not the Blade, It’s the Math
While Nanami’s cleaver itself isn’t a cursed weapon, it becomes lethal when paired with his cursed technique, known as the Ratio Technique.
The Ratio Technique Explained
Nanami’s cursed ability allows him to divide his target’s body into a 7:3 ratio. When he strikes precisely at the point where that division lies, it creates a critical weak spot, allowing him to inflict serious—often fatal—damage with a single blow.
This technique guarantees vulnerability, no matter how tough or resilient the target is. Even if they’re layered with cursed energy or supernatural defenses, the 7:3 ratio bypasses it all and ensures maximum damage. What makes this even more powerful is that the cleaver doesn't need to be a cursed tool. The cursed technique handles the heavy lifting. As long as Nanami hits the weak point, the strike will be devastating.
Why a Cleaver?
The wide surface of Nanami’s cleaver provides excellent coverage for precision strikes. It’s heavy enough to deal serious damage and simple enough to allow tight control. It’s not about elegance—it’s about effectiveness. A flashy sword might be wasted in Nanami’s hands. His cleaver is the perfect tool for applying cold, calculated efficiency.
Symbolism Behind the Cleaver
There’s more to Nanami’s weapon than meets the eye. On a symbolic level, it reflects the themes of:
1. Work Ethic and Routine
Before becoming a full-time sorcerer, Nanami was a salaryman—a white-collar worker stuck in the grind of Japanese corporate life. He hated the monotony and soullessness of the job, yet his time there deeply influenced his mentality as a sorcerer.
Nanami treats exorcism like clocking into a job. He’s meticulous with his hours—“I’m working overtime now” isn’t just a line, it’s a power-up. His cleaver, much like a worker’s tool or chef’s blade, is a symbol of labor. It reflects his belief that fighting curses is work, not a heroic endeavor.
2. Order and Control
In contrast to chaotic fighters like Itadori or Gojo, Nanami is all about order, structure, and logic. The cloth wrapping, the controlled movements, the mathematical Ratio Technique—all of it points to a man who finds clarity in systems and rules. The cleaver is never used recklessly; every swing is part of a calculated sequence.
3. Humanity
Nanami doesn’t see himself as a hero. He’s just a man trying to do the right thing, and his weapon mirrors that grounded reality. While others fight with supernatural blades or demonic artifacts, Nanami wields something you might find in a kitchen or a workshop. This keeps him human and relatable, even in a world dominated by the inhuman.
Legendary Moments Featuring Nanami’s Cleaver
The cleaver doesn’t just look cool—it’s made its mark in some of Jujutsu Kaisen’s most unforgettable scenes.
Shibuya Incident Arc
This arc showcases Nanami at his most brutal and vulnerable. Half his body is burned and mangled after an encounter with Dagon, but he still stands—cleaver in hand. Bloody and staggering, he continues to eliminate curses with ruthless precision, showing the world the meaning of duty. His weapon, chipped and scorched, becomes a symbol of perseverance against overwhelming odds.
Battle Against Mahito
Nanami’s weapon played a central role in his fight with Mahito, the cursed spirit who manipulates souls. Using the Ratio Technique, he was able to wound Mahito in ways that most sorcerers couldn’t. Though he didn’t land a killing blow, Nanami’s intellect and precision made him one of the few humans Mahito genuinely feared.
Overtime Mode
When Nanami goes into "overtime," he unlocks more cursed energy, becoming faster, deadlier, and more relentless. During these scenes, the cleaver becomes an extension of his unshakable will—a tool of justice in the hands of someone who’s just had enough.
Why Nanami’s Cleaver Stands Out in Jujutsu Kaisen
In a world where cursed tools like the Inverted Spear of Heaven and the Split Soul Katana steal the spotlight, Nanami’s cleaver holds its own. Its impact isn’t from flashy powers or ancient history—it’s from its realness.
Where Gojo blinds with overwhelming force and Itadori inspires with raw potential, Nanami’s weapon teaches us about restraint, purpose, and staying grounded. He’s not trying to be the strongest. He’s trying to be the most effective. And that makes all the difference.
The Legacy of Nanami and His Cleaver
Kento Nanami may no longer walk the battlefield, but his legacy—and his cleaver—live on. Fans remember him as one of the most stoic, noble, and relatable characters in Jujutsu Kaisen. His weapon is a lasting part of that legacy. It’s not gilded or mythic—it’s practical and deadly. And that’s exactly what makes it so iconic.
