The Butterfly Effect Brought by Whale Rubber

"Secret Medicine Theory?"

Yu Tianheng shook his head.

Taking forbidden drugs might greatly boost one's strength in a short time, but it came at the cost of their own potential.

The gain was not worth the loss!

Even if he couldn't beat Dugu Yan, or if one day Osler surpassed him in soul power level, he would never take Yu Cheng's secret medicine!

The team continued forward.

After walking west for an hour, they arrived at a relatively barren mountain range.

The vegetation here was sparse, exposing large patches of bare rock.

Occasionally, they could see some thorn bushes—exactly the target for Yu Cheng's second soul ring.

Spike Thorn.

This kind of thorn bush bore fruit, its surface covered in many spikes.

The fruit was delicious, and many soul beasts loved to eat it. But the spikes were poisonous; once a soul beast's skin was scratched, it was hard to heal, and the Spike Thorn relied on absorbing that blood to survive.

"Everyone be careful, don't get scratched by the thorns!"

Dugu Yan shouted loudly.

The others nodded, forming a circle as they cautiously explored.

Ye Lingling also released her martial soul; in this environment, her Nine Heart Begonia was especially important.

"Found it!"

Yu Cheng suddenly pointed in a direction and shouted.

Everyone followed his finger and saw a Spike Thorn over a thousand years old.

"What sharp observation!"

Yu Tianheng couldn't help but exclaim.

Not long ago, when they were searching for the White Giant Snake, Yu Cheng had also been the first to spot its trail.

"Yu Cheng, how did you find it?"

Osler asked curiously.

His martial soul was the Black Panther, and his observation ability was the best among everyone present.

He never expected to be outdone by Yu Cheng, who hadn't even released his martial soul?

Yu Cheng chuckled, ignoring their astonishment.

With a thought, Youth Yu Cheng drifted back from afar.

As a Title Douluo, even if Youth Yu Cheng was only a wisp of remnant soul, his spiritual power far surpassed that of these Soul Elders.

What's more, he had placed Youth Yu Cheng outside.

It was practically a mobile radar!

"Attack! Use long-range strikes, don't engage in close combat!"

Dugu Yan gave the order.

She launched the first attack; her first and second soul rings lit up, and red and blue poisonous mist sprayed from her mouth simultaneously.

Yu Tianheng's first soul ring shone, and Thunder Dragon Claw tore through the air, blasting toward the thorn bush.

Yufeng's wings glowed with cyan light, and in the next moment, two Wing Blades shot out rapidly.

Notably, the Shi Brothers raised their shields and hurled them fiercely. The shields arced through the air, precisely hitting the roots of the Spike Thorn.

The Spike Thorn's outer skin was tough, but facing the attacks of a group of Soul Elders, it only lasted a few minutes.

Looking at the dying soul beast, Dugu Yan asked again, "Yu Cheng, are you sure you want to absorb this thousand-year soul ring?"

As a friend, she naturally hoped Yu Cheng could break through his limits.

But her current role was captain; if something happened to Yu Cheng, she wouldn't be able to explain it to Teacher Qin Ming.

"This soul beast's age is already twelve hundred years. Maybe we should find one that's exactly a thousand years?"

Ye Lingling spoke up.

Over the past year, she hadn't had many chances to fight alongside Yu Cheng. But every time they teamed up, he handled support and amplification while she handled healing and restoring vitality—their cooperation was quite seamless.

As fellow Support System Soul Masters, she already considered Yu Cheng a friend.

"Hahaha, when have I ever done something I wasn't sure about?"

Yu Cheng laughed loudly, easing everyone's tension.

He walked over to the thorn bush, took a short blade from his soul tool, and stabbed directly at the root.

A bright purple soul ring rose.

Without hesitation, Yu Cheng sat down cross-legged and began to absorb it.

"This guy, honestly."

Dugu Yan couldn't help but complain.

Yet, deep down, she was praying for Yu Cheng, hoping he would succeed in absorbing it.

"Second soul ring, twelve hundred years..."

Yu Tianheng shook his head and let out a soft sigh.

At this moment, he felt a pang of discomfort in his heart; his third soul ring was only thirteen hundred years.

He certainly wasn't jealous of Yu Cheng, just lamenting his own ill fortune.

Truly: each generation produces its own talents!

In the past, Yu Tianheng loved listening to his grandfather's stories. He hoped to become a Title Douluo, revered by thousands, just like his grandfather.

But now, Yu Tianheng felt an inexplicable sense of defeat rising within him.

He didn't seem to be the protagonist of the story.

"Ah."

Yu Tianheng sighed deeply.

In another valley of the Sunset Forest.

Ning Rongrong sat cross-legged on the ground, and above her head hung a bright purple soul ring.

"You must succeed!"

Ning Fengzhi stared at Ning Rongrong, his hands involuntarily twisting the hem of his clothes.

It was hard to imagine that this gentle and refined Soul Saint could be so unsettled.

After obtaining the Whale Rubber Theory, Ning Fengzhi had devised a plan.

He wanted to break the curse of the Seven Treasure Glazed Tile Pagoda, which could never surpass level eighty!

Ning Rongrong was the executor of this plan.

To carry it out, Ning Fengzhi organized teams to hunt whale soul beasts on one hand, and spared no expense in purchasing high-grade whale rubber on the other.

To absorb a thousand-year second soul ring, Ning Rongrong consumed ten pieces of ten-thousand-year whale rubber.

Before she absorbed the soul ring, Ning Fengzhi secretly conducted an experiment.

Ten quasi-Soul Grand Masters, after taking ten-thousand-year whale rubber, attempted to absorb a thousand-year second soul ring.

Eight succeeded in absorbing the soul ring without any abnormalities. One suffered irreparable damage to their meridians after absorption.

And one died.

The success rate was only eighty percent.

Ning Fengzhi was reluctant to let his own daughter take the risk, but in the end, his obsession overcame his familial love.

Half an hour later.

"Phew~"

Ning Rongrong opened her eyes and slowly exhaled a mouthful of turbid breath.

"Dad, I succeeded!"

She bounced up from the ground and threw herself directly into Ning Fengzhi's arms.

"Rongrong, well done! What is your second soul skill?"

Ning Fengzhi said excitedly.

"Hmph!"

Unexpectedly, Ning Rongrong broke free from his embrace, pouting as she said, "Absorbing a thousand-year second soul ring was so dangerous, and you didn't even ask if I felt unwell, stinky Dad!"

Ning Fengzhi was taken aback for a moment, then patted Ning Rongrong's head and laughed, "Good Rongrong, Dad was wrong. When we get back, I'll buy you a soul-conducting necklace."

"Hmph."

Ning Rongrong turned her head away and let out another cold snort.

But soon, she curled her lips into a smile and said boastfully, "My second soul skill is amazing, look!"

"Seven Treasures Famous, second: Speed!"

Ning Rongrong's second soul ring lit up, and a beam of colored light shot into Ning Fengzhi's body.

"Speed amplification, not bad, not bad!"

Ning Fengzhi carefully sensed his own state, and the next moment, his pupils contracted sharply.

"The amplification ratio actually reached 35%!"

According to tradition, a level twenty-one Seven Treasure Glazed Tile Pagoda soul master's soul skill amplification ratio should be 30%. Unexpectedly, Ning Rongrong had broken the limit!

"Hahaha, truly Dad's good daughter!"

Ning Fengzhi laughed heartily as he scooped Ning Rongrong up into his arms.

Inside the teacher's dormitory in Nuoding City.

Yu Xiaogang scribbled and sketched on a sheet of draft paper, with a book scattered nearby—it was none other than Master Yu Cheng's Ten Great Theories.

"I understand now!"

Yu Xiaogang set down his pen and shouted excitedly, "I've finally calculated it."

Tang San walked over and asked curiously, "Teacher, what have you figured out?"

"Hahaha."

Yu Xiaogang laughed heartily and ruffled Tang San's head.

"Xiao San, look, Yu Cheng's Theory actually has a massive flaw."

"And this is precisely the direction of my next research!"