I can push my cultivation progress to the end

"Do you remember what I said to you back then?"

In the dim tunnel, Li Hai paced over to Guo Huaijin, looking down at him with a cold smile, "You retreat thirty feet, and I'll retreat thirty feet, then we'll both go our separate ways."

To Li Hai's jesting words, Guo Huaijin could only tremble, gasping for breath, unable to utter a single word.

"I won't torment you too much."

Li Hai slowly squatted down, staring intently into Guo Huaijin's eyes, savoring the regret and despair within them, and said coldly, "Because you are already in great pain right now, aren't you?"

After expending her last bit of evil energy to possess Guo Huaijin, A Su forcibly integrated her twisted essence into his soul, mind, and six viscera.

So at this moment, Guo Huaijin was experiencing the terrifying agony of A Su, pregnant with a large belly, being burned alive in a raging fire decades ago, every second of every minute, from soul to flesh.

And in order to complete this revenge, A Su had also paid a great price.

She, who originally had a glimmer of hope for recovery, was now almost completely destroyed, her mind shattered.

So after Li Hai mumbled a few words, he quickly carried Guo Huaijin on his shoulder, swiftly leaving the underground and returning to the courtyard.

"Sure enough, it's still here."

Li Hai picked up a hollow copper pipe from the corner of the yard, walked to Guo Huaijin, who was tied to the blood-tree stump, and showed it to him with a smile:

"Look, this is your grandson's big copper pipe, Old Guo, I've always been fair in my dealings. The way you wanted to kill me back then is how I'm going to kill you now."

To this, Guo Huaijin, who was already unable to utter a single word, could only tremble incessantly, his eyes filled with sorrow and unwillingness.

Li Hai was very surprised by his reaction:

"You've already been tormented to this extent by A Su, yet you still don't want to die, you're still so afraid of death?

To be honest, if an ordinary person suffered as much as you have, they would be jumping for joy at the chance to die quickly.

You, ah, you, you're truly afraid of death to the extreme, but the more you are like this, the less I will let you have your way."

With that, he lifted Guo Huaijin's upper body clothing, aimed the copper pipe at his wrinkled chest, and forcefully stabbed it into his rapidly beating heart.

Then, large gushes of blood spurted wildly from the other end of the copper pipe under the violent pumping of Guo Huaijin's heart, staining the surrounding area of several feet in a layer of crimson.

Guo Huaijin's features contorted as he screamed silently, his entire body tensed for a full five breaths before instantly collapsing, lifeless.

A Su, the vengeful ghost who had already merged with him, also dissipated completely, her soul scattered.

At the very instant that this man and ghost went to the Yellow Springs together, Li Hai's system suddenly buzzed.

"Hmm? What's going on?"

Filled with doubt, Li Hai immediately swept his gaze over his personal interface.

Then he discovered that the columns like Level, Skills, and Tags had not changed much, but the '2' suddenly appeared in the Strongest Shard column.

"Does this mean that I now have two Strongest Shards?"

Li Hai subconsciously looked at the dead Guo Huaijin and murmured softly, "Could it be... because I killed this old dog Guo? Then why isn't it one shard, but two...?"

"Oh right, there's also A Su. A Su can also be considered to have been killed by me, so I obtained two Strongest Shards by killing this man and ghost."

Speaking of this, he became puzzled again: "It's strange, I've killed quite a few people before, so why did only these two drop gold coins?"

After thinking about it, Li Hai considered: "Could it be because A Su and Guo Huaijin are strong enough?

Tsk, A Su is alright, but what kind of strong person is this old dog Guo? This despicable villain completely insults the word 'strongest', doesn't he? I can't figure it out."

He was also straightforward enough, thinking that since he couldn't figure it out, he might as well not think about it, purely wasting time, so he began to study the function and effect of the Strongest Shards.

At first, Li Hai naturally thought that this kind of shard might increase his stats.

But after searching back and forth, he couldn't find anything related to stats in his personal interface.

Then, Li Hai began to think that this shard was probably for upgrading tags.

But when he used his mind as a hand and clicked back and forth on all his tag characteristics several times, he didn't find any reaction from the Strongest Shards.

It wasn't until he moved his gaze to the skill column, clicked on those martial arts techniques, bloodline divine powers, and ghost path evil arts, and received various corresponding feedback information from the system, that Li Hai truly understood the wonderful use of the Strongest Shards.

"So the real purpose of the Strongest Shards... is to upgrade skills, oh, and skill fusion."

Li Hai looked at the various techniques, divine powers, and evil arts in his skill column, and pondered, "Then which skill should I upgrade?"

As for skill fusion, he didn't have this idea for the time being.

Because from the system's feedback information, skill fusion has great unknowns.

It may fuse into a powerful skill, or it may fuse into a worse skill, it's too much about luck.

And judging from his many years of experience in buying lottery tickets and speculating in stocks, Li Hai was not very optimistic about his luck.

Rushing to put all his eggs in one basket would most likely only lead to tears.

"So let's upgrade, this operation is the most stable."

Aiming his gaze at "Tiger Claw Knife Fist" and "Bloodthirsty Burning Heart", Li Hai decided decisively, "Let's upgrade these two skills, they are the foundation of my survival."

As for the pile of ghost path evil arts behind, Li Hai didn't plan to upgrade them for the time being.

Because this kind of ghost art is too dependent on the external environment. Unless it is within the range of evil spirits, its power and effectiveness will be greatly reduced, which is really not a good choice.

In contrast, martial arts techniques and bloodline divine powers do not have these annoying restrictions, and can be used freely wherever they are.

Once he made up his mind, Li Hai immediately chose "Tiger Claw Knife Fist" and "Bloodthirsty Burning Heart" and began skill upgrades.

Buzz——

As his thoughts flowed, the two Strongest Shards that he had just warmed up disappeared out of thin air, and the two skill entries immediately fell into a state of vibration, and the font of the name also began to become blurred and hazy, making it impossible to see clearly.

This state only lasted for a moment.

After a moment, the two skills completed their level promotion.

Their specific names have also completely changed to... "Beast Intent Demon Claw" and "Blood-Soaked Sinking Heart".