One Piece: The Cryo Doctor on the Straw Hat Ship

When V actually held this thing in his hand and touched its pulsating rhythm through the cold petri dish, he felt unusually calm.

"I hope you can bring me some surprises," V murmured.

The next second, a thought flashed through his mind, and a familiar semi-transparent interface appeared at the edge of his vision.

【black market】

[Confirm Redemption]

Seemingly sensing danger, the heart inside the container began to beat violently again.

However, in the face of the system's powerful influence, all of this was nothing but a futile struggle.

In the blink of an eye, Luffy's heart disappeared.

At the same time, a series of small text prompts flashed before V's eyes:

[Testing in progress...]

[Target detected: Human Heart - Power of the Sun God (Tier 9)]

[Conversion complete!]

[Obtained: Heart of Liberation - Nika Engine (Tier 9)]

Chapter 153 Dark Engine

"Nine... Ninth-tier cybernetic body!?"

The control room was deathly silent.

V's gaze froze on the line of text that had just appeared, as if an invisible force had choked him.

The ninth-order characters burned on the retina, each stroke carrying a weight far exceeding the dimensions of cognition.

Although this ranking is reasonable considering Luffy's status as the "chosen one," V was still somewhat shaken.

After all, even Blackbeard, who is much stronger than Luffy, only contributed an eighth-tier cybernetic body.

V quickly regained his composure and carefully examined the information about the uprising.

【Cyborg Body: Heart of Liberation - Nika Engine】

[Rank: 9]

[Introduction: A special prosthetic body transformed from the heart of the user of the Sun God Nika Fruit. It can be used directly as a secondary heart or connected to a prosthetic heart.]

Effect 1: Power of the Sun God Nika

After implantation, the engine synchronizes with the fruit rules of "Sun God Nika," allowing the host to directly awaken all the abilities of the Nika form, including:

Free deformation of the body: The rubber body breaks through physical limitations and can achieve local or overall molecular-level stretching and gigantification at will;

Restraint breaking property: It has a natural resistance to abilities that imprison or shackle it, and can dismantle the restraint structure from the inside through vibration waves;

Nika Domain Deployment: Deploys a "Liberation Force Field" centered on itself. Environmental matter (including non-living matter) within the domain temporarily acquires rubber-like properties and can be manipulated and deformed by the host (the domain's range expands with the strength of will).

(Note: Specific abilities are affected by the host's own physical constitution, willpower, and combat experience. The engine only provides "rule access" and energy support.)

Effect Two: The Origin of Life, the Power of Nature

The implant recipient can absorb natural energy and transform it into a persistent bioenergy field.

This energy field can achieve a three-dimensional synchronous overclocking recovery effect:

1. Physical regeneration: Damaged tissues heal at an abnormally fast rate, capable of repairing severe injuries such as ruptured internal organs and broken bones;

2. Abundant physical energy: The energy consumed during exercise can be converted and replenished in real time, greatly improving endurance;

3. Environmental resonance: Recovery efficiency is further enhanced in an environment full of natural energy.

(Note: Positive biological will can be regarded as a kind of natural energy. When emotions such as laughter and free will collectively appear near the implant recipient, this effect can also be triggered, providing the implant recipient with recovery ability.)

Effect 3: Mental Influence - Demonic Power

The engine deeply connects with the host's will and emotional energy, forming a mental radiation field:

1. Emotional Influence: The host's strong emotions can spread outward, subtly influencing the mental state of surrounding individuals, inspiring the fighting spirit of allies, and weakening the enemy's will to fight and sense of oppression.

2. Will Resonance: Within the Nika Domain, the host can temporarily enhance their own or their allies' mental resistance through collective mental resonance, resisting mental abilities such as hypnosis and fear;

3. Rule Infiltration: When the host's will is highly concentrated, mental radiation can briefly interfere with the "common sense" of reality, causing the rules within the domain to exhibit a temporary tendency towards flexibility.

Price: 100 trading points

……

……

"Hi~!"

After reading it four or five times, V finally fully understood all the abilities of this prosthetic body.

Immediately, he gasped.

The cold air rushed into his chest, but it couldn't suppress the shock in his heart.

Ninth level.

Is this the true appearance of a ninth-order prosthetic body?

V's gaze was fixed on the detailed, almost terrifying, descriptions of the effects, and his pupils behind his glasses contracted slightly from the shock of the data.

Putting aside the fact that equipping the Nika Engine grants direct access to Nika's power, its effect is equivalent to Gear 5's Apollo Mode in the anime.

The subsequent descriptions of the origin of life and the spirit are completely undisguised, directly expressing Luffy's sit-ups and his invisible power to influence others in words.

In other words...

With the help of this Nika Fruit, everyone can be the protagonist, everyone can be the chosen one!

but……

Looking at the unprecedented price of 100 million trading points for the Nika Engine, V felt as if a bucket of ice water had been poured over him, extinguishing the burning passion that had instinctively risen from obtaining the ninth-tier cybernetic body.

He slowly withdrew his hand, shifting his gaze away from Nika's engine.

"One million trading points..."

Along the way, the total amount of transactions he handled, in all sorts of ways, did indeed just barely reach the million mark.

And that was just "handled".

It is flowing water, it is a passerby.

Especially recently, he's been modifying Blackbeard and his crew, upgrading their cybernetic bodies, and researching soul cybernetic body projects...

His trading points had long since run out, almost completely depleted.

The task of accumulating enough trade points to purchase this Nika engine is arduous and long-term.

"Forget it, let's not think about the future for now."

V abandoned his dreams for the future, looked at Luffy who was still unconscious, and weighed the prosthetic body in his hand.

Although the prosthetic body was ownerless and anyone could use it, V ultimately decided to equip it to Luffy.

On one hand, he is more accustomed to and suited to fighting in rubber form, and on the other hand, V also possesses a powerful prosthetic body.

That is the [Dark Heart - Dark Engine] that was transformed from Blackbeard.

As an eighth-order cybernetic body, its abilities are not to be underestimated.

【Dark Heart - Dark Engine】

[Rank: 8]

[Description: A special prosthetic body transformed from the heart of a Dark-Dark Fruit user. It can be used directly as a secondary heart or connected to a prosthetic heart.]

After the engine is implanted, all the abilities of the Dark-Dark Fruit will be synchronized.

Ability 1 - Dark Domain Diffusion:

The engine can actively release controlled dark matter, or form regional "dark erosion domains," within which:

The stability of material structure and energy transfer efficiency are continuously weakened;

Individuals entering the area will be continuously affected by slight energy decay and sluggishness, and prolonged stay may lead to accelerated physical exhaustion.

Capability Two: Gravitational Domination

It generates a controllable local gravitational field, effectively attracting or repelling nearby physical targets;

When within the influence range of a gravitational field, the release of the target's biological wavelength can be temporarily suppressed by gravitational perturbation;

Gravity control has a certain degree of directionality and suddenness, but its range and intensity are limited by the host's basic capabilities.

Ability 3 - Infinite Absorption:

It can absorb energy attacks of various forms, such as impact and heat, and convert them into its own energy reserves.

Absorbing energy can be used to enhance the "Dark Erosion Domain" or temporarily boost one's burst output, achieving a cycle of offense and defense.

It can absorb some rule-based abilities, but cannot store them for long periods.

Price: 50 trading points

……

……

As the most hidden man in the pirate world, Blackbeard's prosthetic body, formed from his heart, is undeniably powerful.

It can synchronize all the abilities of the "Dark-Dark Fruit," granting the host the dark power to control gravity, devour energy, and even deprive others of the fruit's power.

In the eyes of most people, this is already a terrifying power capable of dominating the ocean and reaching the pinnacle.

However, compared to the Nika Engine that Luffy's heart transformed into, it pales in comparison.

The Nika Engine directly transforms the host into a protagonist.

The Dark-Dark Fruit primarily creates more combat options for its host.

The difference between the two is not simply a matter of power level, but rather a fundamental difference in nature.

but……