"I'm so sleepy! I want to go to sleep too!"

Ye Lei stretched and yawned as he spoke.

"Brother Lei, do you want me to come with you?"

Chen Xueer said anxiously that she was the first goddess to be saved, but there was still no sign of pregnancy. She had taken a lot of traditional Chinese medicine that Xiuyan had given her, but there was still no progress.

"Let's skip tonight, I have something to do, so please don't bother me!"

Ye Lei plans to digest the crystal cores he collected in the X Secret Laboratory.

"All right!"

Chen Xueer, somewhat displeased, took the foot bath basin to the bathroom to pour out the water.

Without saying a word, Ye Lei went upstairs to the second floor. With his warning, no one dared to disturb him, and he could finally absorb the energy of the crystal core properly.

He sat cross-legged on the soft bed, his eyes slightly closed, his hands gently raised to his chest. Then, with a thought, he took out several crystal cores from his spatial storage and carefully held them in his palms.

Immediately afterwards, he took a deep breath, cleared his mind of all distractions, and focused intently on circulating his spiritual energy, beginning to absorb the abundant and pure energy hidden inside the crystal core.

The crystal cores, which were already shimmering with green or yellow halos, now seemed to be ignited, radiating an even more dazzling light.

The light was like dazzling lightning bolts, mesmerizing and captivating. In the blink of an eye, these brilliant lights converged into a sea of ​​pure white light, which surged into Ye Lei's body like a tide.

Ye Lei clearly felt an extremely powerful energy surging and raging within his body, as if it were about to burst out.

This feeling both excited and frightened him, as he worried that he could not withstand such violent power. So he quickly calmed his mind, circulated his internal energy, and tried to restore his peace of mind.

Finally, under his full control, all the energy smoothly returned to his dantian, like rivers flowing into the sea. As the light gradually dimmed and disappeared without a trace, the originally crystal clear and radiant crystal cores also quietly vanished.

At this moment, Ye Lei slowly opened his eyes, a hint of fatigue flashing in them, but mostly satisfaction and joy. At the same time, the system's voice echoed in his mind:

[Congratulations, host! Ice Roar has been upgraded to the top-tier Frost Sword.]

An ice sword? That sounds good. Tell me more about it!

【As the name suggests, the Frost Sword, once activated, can transform ice into swords, unleashing a barrage of ice swords that inflict fatal damage on the target, and is especially effective against targets that cannot be frozen】

This is not bad. Ye Lei remembered that the last time he used Ice Roar on the soldiers, it was useless. With the Frost Sword, let's see how you dodge now.

Ye Lei took out another handful of crystal cores and, following the same method, absorbed the energy contained within them, hoping for another unexpected result.

As expected, with the disappearance of the crystal core, the dantian was once again filled with energy, and the system's voice echoed in the mind:

[Congratulations, host! Hellfire Lightning has been upgraded to the top-tier Thor's Hammer.]

Thor's hammer? That sounds really powerful.

Yes, Thor's hammer not only possesses the effect of hellish lightning, but it can also transform lightning into a giant hammer to deliver a fatal blow to the target.

After listening to the system's introduction, Ye Lei smiled slightly. This trip was finally worthwhile. He would keep some of the remaining crystal cores for Xiuxiu and also check if there were any better superpowers to exchange for in the points mall.

When he saw the upgraded version of the spatial rift where space was frozen, he was filled with shock.

According to the introduction, once this superpower is mastered, it can automatically absorb anything that may pose a threat to the owner without needing to activate it, and release it out of the space at will, causing great damage to the target.

This is absolutely amazing! In comparison, Tang Xiaoting's Shield of Protection seems to be slightly inferior.

After all, the Shield of Guardians only has a defensive function, while the Spatial Rift combines defense and counterattack, and can reflect the enemy's attack back intact, which is the so-called "using their own methods against them".

Such powerful ability is truly amazing, but unfortunately, it requires a whopping amount of points to redeem it.

At this moment, Ye Lei had less than 100 points, which was still some distance from his goal. Helpless, he had no choice but to give up for the time being!

However, in order to obtain such a powerful spatial rift ability as soon as possible, one must find a way to earn enough points.

There are multiple ways to earn points; you can exchange them using crystal cores or accumulate them by completing various tasks.

So he opened the task system without hesitation, eagerly hoping to find a rewarding task.

Suddenly, a massacre mission marked with five shining stars appeared before him, catching his attention. He clicked on the mission details page.

Detailed description of the massacre mission: Due to the continuous high temperatures, the virus has been rampant and spreading rapidly within the stadium shelter. Several survivors have unfortunately died from the infection, and the infection continues to spread.

Worse still, a mutated vulture-like zombie king detected the presence of a corrosive corpse and began circling the stadium all day, posing a deadly threat to the survivors. Despite numerous attempts by the military to kill it, all attempts have failed.

The task difficulty is rated five stars, and the reward points are awarded.

After carefully reading the mission description, Ye Lei couldn't help but wonder: Vultures should normally live on vast grasslands! Why would they fly here? Could it be that there are no more carcasses to eat on the grasslands?

It seems that these vultures are only interested in the rotting corpses of survivors, and have no interest in the rotting flesh of zombies.

Thinking about this, Ye Lei had a clearer understanding of the difficulty of this mission. To complete this five-star difficulty massacre mission, not only courage and strength were needed, but also a deep understanding of the habits of this mutated vulture and the corresponding strategies.

Since things have come to this, the only option is to go to the stadium again to find out what's going on and see what this so-called Vulture Corpse King is capable of.

If we could subdue and control them, that would be ideal, as it would fill the void left by the departure of the bloodthirsty bats.

However, if this beast cannot be controlled, the safest approach is to completely eradicate it.

However, for vultures that have always ruled the sky, getting them to obey human commands and control is probably not an easy task!

After all, these ferocious birds are born with proud personalities, and now that they are rational zombie kings, how could they easily bow down and submit to others?