After arranging all the materials in order, he immediately began refining them. As one batch after another was refined, the aroma of the potion in the vessel became increasingly rich.

Two hours later, Chu Chen looked at the two vials of potions, each a different color, in his hand. His eyes were filled with excitement.

The Nirvana Evolution Potion was an earthy green. Although they were mixed together, they still remained distinct, appearing quite peculiar.

The Lei Yao Evolution Potion was a blood-blue color, with faint currents flickering within.

After carefully storing away the two vials of evolution potions, Chu Chen left the laboratory.

As soon as he stepped out of the laboratory door, he was greeted by the familiar noisy environment.

Chu Chen had no intention of staying. He immediately pushed through the crowd, approaching a staff member, and after paying the fee, rented a cultivation room.

With the key in hand, Chu Chen quickly entered the cultivation room, locked the door, and summoned both Lei Yao and Nirvana.

Chu Chen took out the evolution potions and informed them about the enhancements to their quality.

The two beasts were extremely excited, their eyes fixed on the potions in Chu Chen's hand, blazing with intense fervor.

Seeing this, Chu Chen patiently reassured them, "No rush, adjust your states first before using the evolution potions."

Upon hearing this, the two beasts had to suppress their inner excitement and force themselves into a cultivation state.

Once both beasts had adjusted their states, he fed the evolution potions to them directly.

After consuming the evolution potions, both beasts displayed expressions of satisfaction.

They had both experienced evolution before and were quite familiar with the process.

The two beasts lay on the ground, quietly waiting for the potions to take effect.

Chu Chen wasn't worried about the evolution process. Having gone through several evolutions, he had absolute trust in the evolution formulas within the Slaughter Atlas.

Chu Chen took out a Third-Grade Star Power Pill and placed it in his mouth, entering a state of meditation.

It was unclear how much time passed when two exhilarated roars echoed into Chu Chen's ears.

Chu Chen abruptly opened his eyes and looked towards the two beasts, discovering that their auras were rapidly increasing, and their bodies were continually growing, apparently they had both begun evolving simultaneously.

Although their growth was not extremely fast, it was persistent, and he believed this process would stop only upon completion of the evolution.

The evolution process was not painful at all; both beasts showed expressions of enjoyment.

Chu Chen paid them no further mind and summoned Shadow Kill, giving it a Star Power Pill to consume and letting it cultivate on its own.

However, Shadow Kill did not immediately comply, instead tilting its head curiously as it observed Lei Yao and Nirvana.

Seeing this, Chu Chen laughed and explained, "They're evolving. Believe me, they'll be done soon, so take the time to cultivate yourself."

Upon hearing this, Shadow Kill showed a look of envy, quickly moving in front of Chu Chen, rubbing its triangular head against Chu Chen's arm.

Evidently, it was acting coyly, its general sense being, "I want it too."

Chu Chen was somewhat helpless; Shadow Kill was only a month old, mentally akin to a three or four-year-old child.

Helpless, he had to patiently explain, "Once your strength reaches the Lord Level, I'll evolve you once. Your current quality is very high, and after those two complete their evolution, they can barely match you."

Shadow Kill lit up with joy after hearing this, its eyes widening in disbelief.

Chu Chen could only reiterate, "Rest assured, everything I say is true."

Receiving this affirmation, Shadow Kill could no longer hide its inner happiness.

A pair of sharp blade arms waved in the air for a while, and it looked at Lei Yao and Nirvana with eyes full of pride.

After fooling around for a while, Shadow Kill finally put away its playful thoughts and began to cultivate earnestly.

Only then did Chu Chen resume his meditation.

Half an hour later, two more excited roars interrupted Chu Chen's meditation.

He wasn't displeased but instead opened his eyes excitedly to glance at Lei Yao and Nirvana.

By now, they had completed their evolution. With the effect of the vast amount of treasure materials, not only had they completed their evolution, but their realms had also improved.

They both advanced from the Third Rank Lord Level to the Mid-Stage Fourth Rank.

Besides the realm improvement, their body sizes had grown considerably as well.

Lei Yao's shoulder height increased from ten meters to four meters, and its body length grew from five and a half meters to six meters, its upright height reaching over eight meters, its physique became even more robust.

With the increase in size, its power and defense massively improved, its combat power increasing by at least twenty percent.

Chu Chen hurriedly summoned the Slaughter Atlas to check Lei Yao's changes.

Star Beast Name: Thunder Ape

Life Level: Growth Stage

Star Beast Quality: Perfect Level, Upper Grade

Star Beast Talent: Frenzy D-level, Beast Soul Power D-level, Strengthening Body D-level

Star Beast Level: Fourth Rank Commander Level

Power Talent: B-level

Defense Talent: B-level

Agility Talent: C-level

Physical Talent: C+ Level

Soul Power Talent: C-level

Star Power Talent: B-level

Star Beast Attribute: Thunder Element, Beast Type

Star Beast Skills: Lightning Fist (Ordinary Level, Perfection Level), Thunderbolt Fist (Ordinary Level, Perfection Realm), Thunder Blade (Elite Level, Perfection Realm), Thunder Armor (Elite Level, Perfection Realm), Thunder Shocking Mountain Fist (Excellence Level, Perfection Realm)

Lei Yao's quality had improved to Perfect Level, Upper Grade, with significant enhancements in its Six-Dimensional Talents.

Chu Chen was extremely satisfied with Lei Yao's evolved status. Its life level remained in the Growth Stage, which meant its body would continue to grow even larger. It's hard to imagine how large it would become when its life level reaches the Mature Stage.

After observing Lei Yao, Chu Chen turned his focus to Nirvana.

Its physical changes weren't as extravagant as Lei Yao's.

Its shoulder height increased from 2.2 meters to about 2.3 meters, and its body length from 4.5 meters to the current 5 meters.

Chu Chen then summoned the Slaughter Atlas once more to examine Nirvana's information.

Star Beast Name: Wood Ant

Life Level: Growth Stage

Star Beast Quality: Perfect Level, Upper Grade

Star Beast Talent: Disguise D-level, The More You Fight, the Braver You Get D-level, Endless Life D-level

Star Beast Level: Fourth Rank Commander Level

Power Talent: B-level

Defense Talent: B+ Level

Agility Talent: C-level

Physical Talent: C+ Level

Soul Power Talent: C-level

Star Power Talent: B-level

Star Beast Attribute: Wood Element, Earth Element

Star Beast Skills: Jaw Scissors (Ordinary Level, Great Success Realm), Wooden Cone (Elite Level, Minor Achievement Realm), Earth Rock Armor (Elite Level, Minor Achievement Realm), Limb Regeneration (Elite Level, Minor Achievement Realm), Cycle of Mutual Birth (Excellence Level, Mastery Realm)

Nirvana's changes were similar to Lei Yao's, with the only notable difference being its size.

However, in the same realm, Nirvana's size was already significant.

Chu Chen wasn't in a rush to leave, allowing both beasts to continue consolidating their realms.

Yesterday they broke through from Second Rank to Third Rank, and today from Third Rank to Fourth Rank.

This speed of advancement can only be described as terrifying.

Cultivation is like building a tower; the foundation must be strong enough for the tower not to collapse.

If one only focuses on rapid cultivation, ignoring the foundation will ultimately lead to being stuck at major realms, unable to break through.

While the two beasts consolidated their realms, Chu Chen also began absorbing the soul power feedback from the two beasts.

Half an hour later, Chu Chen also completed a breakthrough and was now at Soul Master Level Fourth Rank, keeping pace with Zhang Yuyan.

Just as he was about to continue consolidating his realm, his communication bracelet suddenly vibrated.

He quickly raised his wrist to check and discovered it was a call from Wang Lu.

Without any hesitation, Chu Chen quickly chose to answer it.

"Hey, you haven't finished buying yet? It's already noon. We're planning to go to the food street for a nice meal. Are you joining us?"

"Of course, I'm done shopping. I'm heading out to meet you now."

"Alright, we'll wait for you at the entrance of the commercial street."

"Okay, I'm on my way."

After ending the call, Chu Chen drew all three Guardian Beasts back into the Soul Sea and left the cultivation room.

By now, the inside of the association had quieted down, and only a few scattered people remained on the large first floor, still purchasing items.

It was already noon, so those students must have gone to find food.

Thinking about it, Chu Chen became a little uneasy as it meant those students had likely moved from the association to the food street.

That implies the food street might become crowded as well.

With a sigh, after paying the fees for the cultivation room, Chu Chen left the association and headed towards the street entrance.

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