The Strongest Plant System Spirit, Named Cloud-Soaring Vine!

After completing the toxicity tests, Grandmaster took off his rubber gloves, picked up the notebook and quill on the bed, and began jotting down notes.

After recording Bai Ge's toxicity test data, Grandmaster put down the notebook and quill, then said to Bai Ge, "Bai Ge, summon your Martial Soul again."

"Okay, Teacher."

Slowly extending his right hand, Bai Ge summoned the Cloud-Soaring Vine Martial Soul once more. The black-purple vine spread out again, extending before Grandmaster.

Because it had been summoned anew, this Cloud-Soaring Vine was no longer the previous one. Its tip had returned to perfect condition.

Grandmaster gently secured the tip of the Cloud-Soaring Vine with his rubber-gloved hand, then used a sharp silver short knife to cut back and forth over it again. After nearly ten cuts, Grandmaster obtained another experimental sample.

In truth, the previous sample was not unusable, but to avoid unnecessary interference, Grandmaster decided to use a fresh sample.

"You should have all seen it just now. Bai Ge's Martial Soul has the greatest toughness of any Plant System Spirit I have ever seen, so there's no need to test that again. Next, I'll test Bai Ge's Martial Soul for its resistance to fire and corrosion."

As he spoke, Grandmaster cut the freshly severed Cloud-Soaring Vine into two more sections. He set one aside for the moment, while the other was picked up with tweezers and carefully placed on a miniature grill.

After lighting the experimental device that resembled an alcohol lamp, Grandmaster moved the grill holding the Cloud-Soaring Vine over the flame.

Next, Grandmaster picked up a beaker from the side and took a test tube containing Green Potion from the silver box. After opening it, he poured the liquid into the beaker.

Afterward, Grandmaster used tweezers to pick up the small piece of Cloud-Soaring Vine he had set aside and gently placed it into the beaker filled with Green Potion.

"Done."

After finishing all this, Grandmaster let out a long breath.

Because Plant System Spirits such as vine Martial Souls rapidly dissipated into the air after being severed from their owner, the experiments had to be conducted quickly. Otherwise, any time wasted would mean the remaining Martial Soul would soon vanish into the air.

"Bai Ge, Xiao San, come closer and help me watch. Pay attention to the rate at which the vine over the fire is burned and the vine in the green acid is corroded."

Keeping his eyes fixed on the Cloud-Soaring Vine on the wooden table's grill and the one in the beaker, Grandmaster instructed Bai Ge and Tang San.

"Okay, Teacher."

Bai Ge and Tang San nodded. One watched the Cloud-Soaring Vine over the fire, while the other watched the vine in the acid.

Bai Ge knew that, as a Star River Level plant lifeform, the Cloud-Soaring Vine would not fear flames or harsh environments at all once it had grown to its limit. But his Cloud-Soaring Vine Martial Soul was still a newly born juvenile, so he did not know its current attributes.

Thus, Bai Ge paid close attention to Grandmaster's experiment as well.

Since the Cloud-Soaring Vine was an entirely new Martial Soul that had never Appeared on Douluo Continent before, Grandmaster was probably the only one capable of planning the optimal Spirit Ring configuration and development path for it.

"According to my research, after a Plant System Spirit is separated from its owner, it can remain in the outside world for roughly two to three minutes without a Soul Master's interference before beginning to dissipate. I want you to observe when the vine in the flames starts burning, when it dissipates, and the degree of corrosion suffered by the vine in the acid within one minute."

Grandmaster's gaze shifted repeatedly between the Cloud-Soaring Vine in the flames and the one in the acid as he continued giving instructions.

"Yes."

Bai Ge and Tang San nodded and began observing in silence.

Half a minute passed. Then one minute, then three minutes, then five minutes. Yet the Cloud-Soaring Vine still showed no sign of dissipating.

"Teacher, it's already been five minutes. Why hasn't Bai Ge's Martial Soul dissipated yet?"

The moisture within the Cloud-Soaring Vine over the flame had finally dried up, and its surface had begun to shrivel. In the beaker, the Cloud-Soaring Vine had finally begun showing visible signs of corrosion. Yet five minutes had already passed, and it still had not dissipated. Tang San could not help feeling puzzled.

Could Teacher have made a mistake?

"Wait a little longer."

Grandmaster was somewhat bewildered as well, but the patience he had cultivated over many years allowed him to remain calm.

As he continued observing the Cloud-Soaring Vine in the flames and acid, Grandmaster began thinking.

Grandmaster was surprised by the Cloud-Soaring Vine's excellent resistance to fire and acid, but not to the point of disbelief.

After all, legend spoke of special plants, some of which could even absorb flames for their own use, while others could ignore acid entirely.

Although the Cloud-Soaring Vine possessed extremely high resistance to fire and acid, it had still been harmed. It was simply far more able to resist than ordinary Plant System Spirits.

But Plant System Spirits should clearly dissipate two to three minutes after being separated from their owner. Yet this vine Martial Soul before him remained perfectly intact. That greatly surprised Grandmaster.

Finally, after another two minutes, the Cloud-Soaring Vine submerged in the acid, which had already been corroded by nearly a third, began to dissipate.

But although the wrinkles in the surface of the Cloud-Soaring Vine in the flames had split open, exposing the dry black-purple substance within, it still showed no sign of dissipating.

After calculating the burning rate of the Cloud-Soaring Vine in the flames, Grandmaster concluded that if it never dissipated, it would take roughly Half an Hour to burn it completely to ash. But could the Cloud-Soaring Vine endure that long?

They would find out by watching!

The three of them continued watching the Cloud-Soaring Vine in the flames. Half an Hour passed, and the Cloud-Soaring Vine was finally burned into charcoal. This left Grandmaster stunned.

"Why can your Martial Soul remain for so long even after being separated from its owner?"

Grandmaster could not help muttering to himself.

"Could it be because of the fire?"

Remembering the Cloud-Soaring Vine Martial Soul's talent for absorbing energy, Bai Ge asked tentatively.

Fire was also a form of energy, just like the Spiritual Energy of heaven and earth in the outside world. The Cloud-Soaring Vine in the acid had lasted for more than seven minutes, over twice as long as other ordinary Martial Souls, because it had absorbed the Spiritual Energy of heaven and earth.

The Cloud-Soaring Vine in the flames had lasted even longer, most likely because while the flames burned it, the Cloud-Soaring Vine was also absorbing the fire's energy to sustain its existence. That was why it could persist until it was burned to ashes.

"Yes, the fire!"

Hearing Bai Ge's words, Grandmaster was As If Waking from a Dream.

"Bai Ge, summon your Martial Soul again. I need to conduct another experiment."

After Calming Down, Grandmaster looked at Bai Ge and said.

"Okay, Teacher."

Bai Ge summoned the Cloud-Soaring Vine Martial Soul once again. Grandmaster laboriously cut off three small sections, leaving one exposed to the air, placing another in a sealed container, and setting the last one over the flames to burn.

After a little over three minutes, the Cloud-Soaring Vine in the sealed container began to dissipate. After more than seven minutes, the Cloud-Soaring Vine left in the air began to dissipate as well, though very slowly. But the vine in the flames showed no sign of dissipating until it had been burned to ash.

"Bai Ge, I finally know why your Martial Soul can last for so long."

After completing the experiment, Grandmaster took a deep breath and looked at Bai Ge with blazing eyes.

"Why?"

Bai Ge pretended to ask curiously.

"Because your Martial Soul can absorb energy from the outside world to sustain itself. Once I cut off its connection with the outside world, it dissipated after two or three minutes just like an ordinary Plant System Spirit. The section still able to interact with the outside world lasted seven minutes. As for the one placed in the flames, the fire continuously replenished its energy, so it did not finally dissipate until it had been completely burned away."

Grandmaster spoke with deep emotion.

"Bai Ge, your Martial Soul possesses the strongest toughness of a Plant System Spirit, exceptional resistance, and the ability to sustain itself by absorbing external energy, greatly reducing its consumption of your Soul Power. Taken together, your Martial Soul can practically be called the strongest Plant System Spirit currently on Douluo Continent."

Grandmaster looked at Bai Ge in amazement.

"I more or less have a plan now for how to develop your Martial Soul. But Bai Ge, have you decided on a name for it? Since it is not Wisteria, whether it is a mutated Wisteria or a new Martial Soul, you should give it a new name."

Looking at Bai Ge, Grandmaster asked with a faint smile.

"Let's call it Cloud-Soaring Vine. I hope that one day, I can use it to reach the Cloud Sky Peak of the Soul Master world on Douluo Continent!"

Bai Ge smiled faintly and spoke with confidence.