Leech

Leech is one of the Shadow Beasts, an elite assassination and enforcement squad working under the Mafia.

He specializes in manipulating parasitic leeches, using his own body as a living nest and arsenal.

He plays a brief but brutal role during the Shadow Beasts’ clash with the Phantom Troupe in a barren wasteland.

Despite landing a seemingly lethal setup on Uvogin of the Phantom Troupe, he is killed almost instantly in retaliation.

Leech is described as an obese man, his body mass fitting his grotesque and parasitic combat style.

His outward appearance reinforces the unsettling nature of his ability, which centers on leeches hidden inside him.

Very little is revealed about his personality, but his fighting style suggests confidence in stealth and indirect attacks.

He prefers to let his leeches do the work, striking when the opponent is immobilized rather than in an open brawl.

Leech belongs to the Shadow Beasts, a small group of powerful Nen users employed by the Mafia.

Within this squad, he serves as a specialist in parasitic, infiltration-based biological attacks.

During the Phantom Troupe conflict, he is deployed alongside other Shadow Beasts to capture or eliminate Uvogin.

His role in the operation is mainly to exploit openings created by his teammates’ abilities.

Nen Type

Leech is a Manipulation-type Nen user.

He uses his Nen to control multiple species of leeches that reside inside his body.

His ability combines biological horror with precise Nen control.

By manipulating these organisms, he can attack, infiltrate, or even support allies under certain conditions.

Leech Manipulation (provisional name)

Leech possesses a Manipulation ability that allows him to control various kinds of leeches he keeps within his own body.

Each type of leech has a different function, ranging from medical use to invasive internal attacks.

He can release these leeches through wounds or openings in the body, directing them toward targets.

Once attached, they can enter the victim’s body through cuts or orifices and carry out their specific purpose.

Medical Leeches

Among the leeches he controls are ones designed for treatment and medical support.

These leeches are used to heal or stabilize allies, functioning similarly to medicinal bloodletting or toxin extraction.

They may drain infected blood or help manage injuries in the field.

This dual use makes Leech both a battlefield asset for offense and a support specialist.

Madalite Leeches

One particularly infamous type is the Madalite Leech.

This species enters the body from an open wound, then migrates internally.

The Madalite Leech travels through the victim’s body and eventually reaches the bladder.

Once there, it lays eggs, turning the victim’s own body into a breeding ground.

This creates delayed, internal damage and intense suffering, even if the initial wound seems minor.

It is especially effective against enemies who think they have survived the initial encounter.

Leech confronts Uvogin of the Phantom Troupe in a remote, desolate wasteland.

The terrain is rough and open, but circumstances briefly favor the Shadow Beasts.

Before Leech’s move, Uvogin is already suffering from the paralytic poison of Yama Inu, another Shadow Beast.

With Uvogin’s movements restricted, Leech seizes the opportunity to get close.

He successfully plants a leech into Uvogin’s body while the Troupe member is paralyzed.

This would normally ensure a gruesome internal attack once the leech begins its work.

However, Leech makes the fatal mistake of leaning in too close to his helpless-looking target.

As he approaches Uvogin’s face, believing his maneuver complete, he drops his guard.

Despite the paralysis and poison, Uvogin manages to bite down on Leech’s head with overwhelming jaw strength.

In one brutal motion, he tears off the right half of Leech’s head.

Uvogin casually comments that Leech “tastes bad,” dismissing him even as he kills him.

Leech dies instantly, without fully understanding what just happened or how he was defeated.

Leech is killed in the same battle in which he appears, his death stark and abrupt.

His demise highlights the overwhelming physical power and ruthlessness of Uvogin.

Although his screen time is brief, Leech’s ability leaves a strong impression due to its grotesque, parasitic nature.

He exemplifies how Nen users can weaponize biology and their own bodies in highly creative and disturbing ways.

Within the broader story, Leech and the Shadow Beasts serve to show the gap in power between Mafia elites and the Phantom Troupe.

His failure underlines that clever abilities can still be completely outclassed by raw strength and vicious instinct.