Black Widow Serum

Symbiotes are indeed powerful extraterrestrial beings, but their weaknesses are also quite evident.

Without addressing the weaknesses of symbiotes, such as vulnerability to fire and ultrasonic waves, even dealing with a first-generation symbiote dragon like Grendel wouldn't be too difficult.

If symbiotes were enemies, Russell not only wouldn't have plans to eliminate these weaknesses, but he would also prefer them to be more pronounced. 

However, things were different now. He had a group of symbiotes under his command.

As their leader, or rather, as the King of Symbiote, he felt it was necessary to help his subordinates overcome these issues.

After all, if his subordinates grew stronger, it would also benefit him.

Normally, making symbiotes immune to weaknesses like fire and ultrasonic waves would require a significant amount of time for them to evolve on their own.

But Russell didn't have the luxury of time to waste.

Moreover, he had no intention of letting Grendel and others evolve in the normal way.

He intended to use the negative energy copied from Mr. Negative to replicate the Venom's evolution into Serum.

Although this method hadn't been tested and he was the only successful case so far, Russell wasn't particularly concerned about it.

The fact that Venom could evolve into Serum under the influence of negative energy proved the method's effectiveness.

Though the success rate needed further exploration, it wasn't a big issue.

At worst, a few second-generation symbiotes might die, which wasn't a big deal.

As black and white flames of negative energy surged from his right hand, Russell seized the second-generation symbiote on the lab table without hesitation.

Under his control, the overwhelmingly dominant negative energy rushed into the symbiote's body.

As the negative energy entered, the symbiote that had been struggling wildly under his grip began to thrash even more, even contemplating extending tendrils and weapons to attack him.

However, before this symbiote could instinctively retaliate, it received an "Absolute Command" executed using Russell's King's Serum ability.

The symbiote that was just struggling frantically moments ago suddenly quieted down, allowing the negative energy to enter its body.

Natasha didn't know what Russell was planning.

However, upon seeing the black and white flames of negative energy erupt from Russell's right hand, she instinctively took a few steps back.

Time passed bit by bit.

Saturating the symbiote with enough negative energy, Russell's right hand, shrouded in flames of negative energy, was withdrawn from the symbiote's body.

The originally all-black symbiote started to change color gradually under the influence of negative energy.

At first, only a small portion of white appeared on its body.

Then, the area covered in white gradually expanded, like a virus devouring the symbiote's original black exterior.

Just when Russell thought the symbiote was smoothly evolving into "Serum," the symbiote lying on the lab table began to tremble uncontrollably.

Tendrils, black and white, burst forth from the symbiote's body, writhing wildly like an octopus's tentacles.

Boom!

After the symbiote, which had already turned mostly white, flailed its tendrils uncontrollably for about ten seconds, it exploded with a resounding bang, scattering into large and small fragments.

A failure!

Clearly, not every symbiote could evolve into "Serum" using negative energy.

First, Russell instructed No. 3 to have the robots clean up the lab. Then, he let the second symbiote voluntarily get on the lab table.

To prevent the symbiote from exploding into fragments again if it failed to evolve, Russell had No. 3 temporarily set up five glass walls around the lab table.

If the symbiote on the lab table went out of control, these five glass walls would form a sealed space.

Just like before, black and white flames of negative energy surged from Russell's right hand, controlling the negative energy's entry into the symbiote's body.

This time, he slightly adjusted the quantity and intensity of the negative energy.

Several minutes later, the second symbiote went out of control as well.

Despite two consecutive failures, Russell had no intention of stopping.

The third, fourth, fifth...

Russell's bottom line now was eight symbiotes.

Unless all eight of these symbiotes exploded, he wouldn't halt the experiments.

He left one behind because that symbiote needed to accompany Natasha back to S.H.I.E.L.D.

Failure after failure, one by one, symbiotes exploded.

With each failure, Russell would adjust the negative energy accordingly and collect data on the failures.

Through the "selfless" sacrifice of these symbiotes, No. 3 collected more and more data and information.

By the time the sixth symbiote was experimented on, combining the data from the previous five failures, No. 3 finally proposed a seemingly reliable evolutionary plan.

Although No. 3 provided the plan and Russell adjusted it as per the plan, the sixth symbiote still exploded.

No. 3 manipulated the robots to clean up the symbiote's remains while Russell sat in a chair, reminiscing about the previous six experiments.

Seeing him frown and ponder in his chair, Natasha walked up behind him, extending her hands to gently massage his temples.

Natasha's skill was exquisite.

However, shortly after she began massaging him, Russell grabbed her right hand.

"Lie on the lab table."

Upon hearing Russell's words, Natasha stopped massaging and gave him a flirtatious look.

"Lie down, quickly!"

Although Natasha's gaze was quite tempting, Russell's thoughts were not aligned with hers.

While Natasha massaged his temples, he realized something crucial.

He had always assumed that Mr. Negative energy was the key to Venom's evolution into Serum.

However, apart from negative energy, there was another crucial factor: the evolution from Venom to Serum occurred within a human body.

This might seem trivial, but from an experimental perspective, the human body was a suitable environment.

An experiment could only yield desired results if the environment met the requirements.

When Natasha removed her coat and was about to remove more clothing, Russell halted her actions.

"Just lie down directly!"

Confused, Natasha glanced at Russell and then climbed onto the lab table, lying down.

After Natasha settled down, Russell had the seventh symbiote jump onto the lab table and then bond with Natasha.

Once the symbiote was bonded, Russell approached Natasha, placing his right hand, wrapped in negative energy, onto her uneven body.

Negative energy began to enter Natasha's body, intertwining with the symbiote inside her.

After saturating Natasha with enough negative energy, Russell withdrew his right hand and patiently observed Natasha, who was wearing a rather peculiar expression.

Time passed bit by bit.

As the strange expression faded from Natasha's face, white tendrils emerged from her body.

Under Russell's gaze, Natasha's body was supported by white tendrils as she stood up.

Subsequently, on the lab table, she transformed into the form of a white symbiote.

Success!

Seeing the white tendrils emerge from Natasha's body, Russell knew that this experiment had succeeded.

Looking at Natasha, whose form resembled his Serum, though slightly more delicate, Russell wore a satisfied smile.

The current Natasha was no longer the Black Widow, but the Black Widow Serum!

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