After hearing Teacher Tie Zhan's words, Yu Tianming fell into thought.
Although the Indestructible Vajra Body cultivation technique sounded powerful, whether to cultivate it was a question.
With his Valstrax Martial Soul, Ultimate Strength, and Dragon Energy Jewel, his physical body was already extremely strong, and it could continue improving in the future.
The Indestructible Vajra Body seemed capable of doing little more than adding flowers to brocade.
In Yu Tianming's mind, Soul Power was the foundation!
Reaching rank one hundred in Soul Power was a prerequisite for becoming a god.
Otherwise,
no matter how strong your body was, even if you could kill a Titled Douluo with one punch, it was useless. Ultimately, you could not compare to an eternally youthful, immortal god!
Yu Tianming pondered for a long time, a sharp gleam flickering in his eyes.
He suddenly recalled a theory he had read in his previous life-when an object's speed exceeded the speed of sound, the resulting air resistance was enough to tear ordinary metal apart.
And the flight ability bestowed on him by his Valstrax Martial Soul would certainly reach supersonic speeds in the future.
Even the terrifying speed of Mach 17 was not out of the question!
Could his body, growing stronger naturally, withstand flight at seventeen times the speed of sound?
The answer was unknown.
But Yu Tianming felt it was unlikely, because judging by their performance in the original story, even the physical bodies of gods might not withstand flight at seventeen times the speed of sound!
"Teacher, I'm willing to try."
Yu Tianming finally made up his mind. "But I need to confirm first whether this technique conflicts with my Martial Soul, bloodline, and Dragon Energy."
"Good!"
Tie Zhan laughed heartily. "We'll start right now!"
Then Tie Zhan explained the cultivation method of the Indestructible Vajra Body to Yu Tianming, along with the characteristics and key cultivation points of its three realms.
He placed particular emphasis on the first, the copper skin realm!
By soaking the body in a specially prepared "body-tempering medicinal solution" and combining it with countless hammer blows, one would raise the density of the skin and flesh to the utmost limit, giving the skin a dark golden sheen. This was copper skin.
Yu Tianming committed the key cultivation points to memory, then immediately took off his shirt, exposing his muscular upper body. "Teacher, let's start now."
Appreciation flashed through Tie Zhan's eyes as he took a bronze medicinal cauldron from his Storage Soul Tool.
The medicinal liquid inside the cauldron was dark gold and gave off a pungent smell.
"This is Dragon Blood Body Tempering Paste, a treasure that assists cultivation in the copper skin realm. Back then, it took me three whole years to absorb all the medicinal potency in this cauldron."
Tie Zhan scooped up the thick medicinal liquid with a wooden spoon. "Since this is your first time cultivating it, we'll only coat your arms."
The instant the paste touched his skin, Yu Tianming's brows furrowed slightly.
It felt as though countless tiny fire ants were gnawing at his skin, the scorching heat mingled with stinging pain.
"Bear with it!"
Tie Zhan took out a short refined-iron hammer. "I'm going to start hammering!"
The first blow fell, and the muscles of Yu Tianming's right arm trembled violently.
Under the hammering, the medicinal liquid rapidly seeped into his pores, and a faint bronze sheen appeared on the surface of his skin.
Yu Tianming's Dragon Energy also circulated within his body. Rather than rejecting the Indestructible Vajra Body, the two complemented each other, rapidly tempering his body.
Bang! Bang! Bang!
The dull hammering echoed through the training grounds. The other students all stopped their sparring and watched the scene in shock.
Dugu Yan covered her small mouth. "Heavens, that looks so painful..."
They had only heard Teacher Tie Zhan say that he would give Yu Tianming special instruction in body tempering. As for the cultivation method of the Indestructible Vajra Body, they had not caught a single word.
Seeing this seemingly self-torturous method of body tempering, everyone exchanged looks.
Surprisingly, as the hammering continued, the bronze sheen on Yu Tianming's arm became increasingly pronounced.
When the three-hundredth blow landed, his entire right arm had turned completely bronze, and fine dragon-scale patterns emerged on the surface of his skin.
"This... how is this possible?"
Tie Zhan's hand trembled slightly. "You've reached the beginner stage in just one hour?"
Yu Tianming moved his right arm, which bore a faint bronze sheen, then casually picked up a broken stone from the ground.
With a gentle squeeze of his five fingers, the hard stone instantly turned to powder.
"Teacher, I feel that my right arm's defense has at least doubled."
The copper skin realm actually did not increase strength much; it primarily enhanced defense.
Tie Zhan looked Yu Tianming over, his face wreathed in smiles. "It took me a full six months to reach the beginner stage and complete the copper skin cultivation of one arm... you brat, you're a monster!"
"You flatter me, Teacher."
Yu Tianming smiled faintly.
Ultimate Strength made his physical body unreasonably powerful. Naturally, ordinary people could not compare.
In the original story, Tang Wulin, twenty thousand years later, possessed the Golden Dragon King's bloodline and Ultimate Strength. His body was extraordinarily powerful, and he even became an inheritor of the Body Sect.
At that moment.
The training grounds were so silent that not even a crow or sparrow could be heard. Everyone was too stunned by the scene to speak.
Yu Tianheng shook his head with a wry smile.
"This little brother of mine really is... becoming more and more of a freak!"
"Keep going!"
Tie Zhan suddenly shouted excitedly, "Strike while the iron is hot! Let's train your left arm too!"
Yu Tianming smiled faintly, feeling the surging Dragon Energy within him.
He vaguely sensed that as his body grew stronger, his Valstrax Martial Soul and bloodline seemed to become more active as well.
Night.
Inside the dormitory, Yu Tianming was meditating and cultivating when the door suddenly swung open, and Yu Tianheng strode in.
"Brother, did you buy it?"
Yu Tianming opened his eyes and asked.
"Yes."
Yu Tianheng spoke quietly, as though afraid someone else might hear.
"Tianming, why did you buy this stuff? You're only six! If Mom and Dad find out I bought you whale rubber, won't they beat me to death?"
Yu Tianheng took several small boxes from his storage belt and spoke irritably.
Yu Tianming took one of the small boxes and gently opened it. Inside lay a dark golden lump of gelatinous material, giving off a faint fishy smell.
It was indeed whale rubber.
Moreover, this was a piece of thousand-year whale rubber!
The corners of Yu Tianming's mouth lifted slightly, and a trace of anticipation flashed through his eyes.
"Brother, do you know what whale rubber is used for?"
Yu Tianheng frowned and coughed softly. "Isn't it that supplement nobles use for... ahem, that sort of thing?"
"Wrong."
Yu Tianming shook his head, lightly rubbing the surface of the whale rubber with his fingertips. "Its true value is that it can temper the body, making one's physique stronger and tougher."
"Strengthen the body?"
Yu Tianheng froze. "But isn't this stuff an aphrodisiac? And the taste..."
"That's because they don't know how to use it." Yu Tianming chuckled, then his gaze sharpened, and he shouted in a low voice, "Valstrax, possess!"
Immediately afterward, a stream of scorching Dragon Energy gathered in his palm.
Yu Tianming placed the whale rubber in his palm. Dragon Energy surged, and under the extreme heat, the originally hard whale rubber gradually softened, turning into a flowing mass of golden liquid with traces of a fishy smell.
"Here, eat it." Yu Tianming held out the softened whale rubber.
"Wait!" Yu Tianheng took half a step back, his face full of disgust. "This stuff smells fishy, and you want me to eat it just like that?"
"Stop talking and hurry!"
Without allowing any argument, Yu Tianming grabbed his wrist and poured the whale rubber liquid into his mouth.
"Mmph-!"
Caught off guard, Yu Tianheng was forced to swallow. His entire face immediately scrunched up. "Cough, cough... this taste... urgh..."
However,
before he could finish complaining, a warm current of energy slowly spread through his body. It was not violent, yet it permeated his limbs and every bone.