Mortal: Starting in a chaotic starry sea, I can upgrade everything.

A soft chirping sound was heard.

The magical dagger struck the golden electric patterns, but was instead deflected, flying back a foot before finally stabilizing.

Holy crap!

Jiang Yu's expression suddenly changed, and he cursed out loud.

The fleeting golden electric pattern had sent a chill down his spine.

Extremely powerful and yang, with unparalleled sharpness, it truly lives up to its reputation as the legendary divine thunder that wards off evil.

Even a trace of its residual power made this cultivator of the Profound Yin Demonic Art feel a chill run down his spine just by looking at it.

"I never expected the power of this exorcising divine thunder to be so strong. Using it to deal with evil and wicked people, as long as there are enough of them, it will give us a huge advantage."

As the fear dissipated, an overwhelming sense of joy surged into my heart.

Jiang Yu stared intently at the Golden Thunder Bamboo in his hand, then carefully put this treasure into his storage bag.

Take a deep breath and calm your turbulent emotions.

He reached out and took out another 30,000 spirit stones, grasped the young bamboo without hesitation, and threw himself into the upgrade process once again.

In a short while, amidst the flow of spiritual light, three ancient bamboo stalks, lush and verdant with golden arcs of electricity, quietly emerged.

"A single ten-thousand-year-old spirit bamboo, after accounting for losses, should be enough to forge several small Golden Thunder Bamboo Arrows."

After a moment's hesitation, he carefully put away two of them, leaving only one floating in front of him.

Then, with a flick of his fingertips, a cluster of pure true fire suddenly appeared and shot towards the ten-thousand-year-old spiritual bamboo.

In an instant, the spirit bamboo burst into flames, crackling and popping, as the spirit bamboo's energy intertwined with the flames.

One day, two days...

A full two weeks have passed quietly.

Jiang Yu's face was slightly pale, his spiritual power was greatly depleted, and the Golden Thunder Bamboo was still being condensed.

With a thought, he threw out a palm-sized piece of iron essence that he had prepared beforehand, and flicked out a burst of true fire from the tip of his other finger, which then enveloped the iron essence.

Two streams of spiritual fire attacked simultaneously.

Time passed, and another half month later.

Jiang Yu finally refined the Golden Thunder Bamboo into a thick green liquid and stored it in a jade box.

As for the remaining Golden Thunder Bamboo Leaves, he naturally put them into his storage bag.

The two true fires within his body were activated simultaneously and suddenly merged into one. The flames in his palm flickered erratically, sometimes bright and sometimes dim, continuously scorching the iron essence in front of him.

In a short while, the incredibly hard iron essence was burned until it turned completely red, slowly softening into cotton, and undulating slightly in the fire.

Seeing this, Jiang Yu stopped his spiritual fire output by withdrawing his hand with one hand.

He then channeled his magic power into an invisible blade, slowly cutting the soft iron essence into eight equal pieces.

Immediately afterwards, he flicked his finger.

He took out a small amount of lustrous Golden Thunder Bamboo Liquid from the jade box, and stirred it in mid-air, allowing it to slowly merge into the crimson iron fragments.

Under Jiang Yu's precise manipulation of magical power, the two materials began to gradually fuse, refine, and forge...

A long month has passed quietly, and Jiang Yu has been in seclusion for more than two months.

Inside the cave, the spiritual energy gradually calmed down.

A faint, sharp golden lightning aura flowed slowly through his fingertips.

With a flick of his finger, Jiang Yu sent out six small arrows, dark blue in color and crackling with lightning, their sharpness almost piercing the void.

"The Golden Thunder Bamboo Arrow is complete."

A slight smirk played at the corners of his lips, a fleeting smile crossing his eyes as he murmured to himself:

"I wonder what Xuan Gu would think if he saw that I have so many Golden Thunder Bamboo Arrows as magical treasures?"

Looking back on the past month of refining, he was cautious and careful at every step.

It took two arrows that were completely destroyed before the six small arrows could be successfully crafted.

With a sigh.

He stared again at the six small arrows that shimmered with a bluish light, tapping the shafts with his fingertips, and a faint hum of lightning emanated from them.

"With the addition of iron essence, it becomes even more durable. Coupled with the evil-repelling divine thunder, it's practically a demon-slaying weapon. From now on, I'll call you the Demon-Slaying Arrow."

As Jiang Yu finished speaking calmly, the six Demon-Slaying Arrows seemed to tremble slightly as if they possessed a spirit.

The lightning surrounding the arrow became increasingly condensed, faintly revealing a chilling aura that was specifically designed to subdue evil spirits.

If he hadn't recognized this magic weapon as his master beforehand and nurtured and suppressed it, the domineering power of the Evil-Repelling Divine Thunder alone would probably have even caused him to be accidentally injured and suffer a backlash.

Jiang Yu gently stroked the arrow shaft, yet a trace of regret swept through his heart:

"It's a pity that we don't have many spirit stones left. If we had enough spirit stones to nurture and upgrade it, the quality of this Demon-Slaying Arrow could definitely be improved all the way up."

With such divine power at his disposal, he felt much more confident about his upcoming journey.

"The Myriad Sounds Sect will inevitably encounter the Extreme Yin Island on this trip. If we encounter Wu Chou..." Jiang Yu said, putting away the Demon-Slaying Arrow, his eyes slightly narrowed, but he was extremely confident.

"However, I am not afraid of a mere mid-stage Core Formation demonic cultivator, as I possess the complete Profound Yin Technique and, combined with the Evil-Repelling Divine Thunder."

Speaking of which, Jiang Yu has quite a connection with this Extreme Yin lineage.

His main cultivation technique is the Profound Yin Technique of Extreme Yin Island; the magic weapon he is currently refining is modeled after his ancestor, the Profound Bone Master.

They're just short of directly inheriting the mantle of the Extreme Yin Island.

For this reason, he had long since made up his mind that he and the lineage of Jiyin Island would inevitably have a head-on collision that would be a fight to the death sooner or later.

My thoughts drifted back to reality.

"The magic weapon is now complete. It seems the three-month deadline agreed upon with Zhou Yuan is almost here. It's time to go to the Wonderful Sound Sect."

Jiang Yu thought to himself, and an overwhelming sense of weariness welled up inside him.

Having been immersed in crafting magical artifacts for over two months, he was already weary and exhausted. He decided not to push himself any further and simply closed his eyes to regulate his breathing, resting soundly for a day and a night.

The next day is dawn.

With his energy and spirit somewhat restored, Jiang Yu slowly walked out of the cultivation room.

The cave was completely quiet at this moment.

Jiang Yu's heart stirred, and he took the initiative to release his divine sense. He saw that the two women were cultivating diligently in their respective secluded cultivation rooms.

"Hmm, it seems like she's about to break through."

Jiang Yu's gaze lingered on Yuan Yao. The spiritual energy around this woman was becoming increasingly refined, and her aura had already firmly reached the peak of the early Foundation Establishment stage.

I imagine that I will soon be entering the intermediate stage.

As for Yanli, her aura was much weaker. Perhaps it was due to her aptitude; her spiritual energy circulation was sluggish, and she had not yet reached the threshold of the mid-stage.

"I remember Yuan Yao's cultivation technique was called something like the Azure Wave Technique? Even a minor sect's technique can be cultivated this quickly with a Yin Body?"

Jiang Yu was puzzled and began to doubt whether Yuan Yao in the original work could cultivate so quickly.

"I don't know if this is a good thing or a bad thing, but on the other hand, her fast cultivation speed is a good thing for me."

Despite his doubts, he knew that everyone has their own destiny, so he chose not to disturb them.

After tidying up and making preparations, he turned and left the cave.

As soon as he stepped out of the gate, Jiang Yu saw the transmission jade slip of the Miaoyin Sect. He raised his hand and took it into his hand, then quickly scanned it with his divine sense.

"The timing is perfect."

His expression was solemn as he flicked his finger and a beam of white light shot out.

After leaving a simple communication jade slip for the two women, he transformed into a streak of red light and headed towards the gates of Tianxing City.