[The True King of the Abyss Sea Clan, an oval slime, exclaimed in horror: "Too strong! He's already this difficult to kill after just being crowned king. Give him a few more decades, or even a few more, and he'll surpass us!"]

"His divine power is at least eighty times greater than mine! Otherwise, he wouldn't have been able to withstand my tongue strike!" said the Nine-Eyed Toad. This giant toad's nine eyes emitted a deadly glow and could spontaneously unleash mental attacks; anyone below the third realm who made eye contact with it would die.

"This is getting a bit tricky."

[More than fifty Abyss True Kings have surrounded you. Although more than thirty of them are rookies below the Ten Thorns level, two of them are no weaker than your original form.]

"Although it's easy to take them down with my main body, I'll use my mech to finish them off." This is your little act of persistence.

[After the breakthrough, the mech and you will become one, inheriting each other's essence. You will then possess six thousand times the essence, and (according to the Zun Yuan system standard) sixty times the combat power of the fifth realm!]

The main selling point is being invincible across all five realms!

[You take a deep breath, concentrate your energy and spirit to the extreme, resonate and connect with Yun Shi Tian Zun with your whole being, and begin taking the medicine to break through and level up.]

[And shouted it out.]

"Human-machine integration, the divine machine begins!"

Upon hearing this, all was silent.

Some Abyss Kings gaped, or stared wide-eyed, wondering if they had misheard.

"What...is this human saying?"

"He...he...he's talking about human-machine integration?"

"Isn't that the line that pilots only shout when they break through to the King of Mechs? He's already broken through, is he just shouting it again to boost his morale?"

"It can't be that he's only now trying to break through, can it?"

"What a desolate place..."

[Your Cloud Origin Celestial Venerable suddenly began to glow.]

[Including you deep within the machine.]

[One person, one machine; they seem like two individuals, yet also like the same being.]

The perfect union between you will create the ultimate combination of pilot and mecha—human-machine!

The fusion process is extremely fast, usually succeeding within seconds. Therefore, even if the True Kings see you undergoing the human-machine fusion, they won't have time to interrupt and can only roar in frustration.

Some even fled outwards.

But...your expression suddenly changed drastically!

[A bottomless pit! The drugs you've been taking are like drops of water falling into a bottomless pit!]

The progress of human-machine integration was stalled before it reached even one ten-thousandth of its target. It was like a person with only the energy of a single grain of rice left in their body, running a kilometer-long race, only to lose the strength to move after taking just half a step.

"No, I am now more than a hundred times the true essence, so I also need to consume more than a hundred times the resources. Even the evolutionary losses of the Holy Body's 'Endless Future Body' have been taken into account."

"So, I should have enough resources, I should definitely have enough!"

"But at the current pace, it would take me millions of times more breakthrough resources to succeed, which is clearly unreasonable! Last time, Xu Ling'er only used a few thousand times more resources, and that wasn't nearly as outrageous as what I'm going to do!"

Although unwilling, you chose to accept it. Otherwise, failing to break through would have made the road ahead countless times more difficult, perhaps even worse than destroying your own life and starting over afterward.

[Therefore, in a future scenario, you descend ten times, ignoring the Abyss True Kings, and instead directly rush into the mythical forces and immortal races in the central region of the Yuantian Realm to seize resources.]

Your breakthrough is exceptional; others would never have had the chance to achieve it—it requires absorbing millions of times more resources in a very short period.

Even if you were at the peak of the fourth realm with six thousand times the essence, you wouldn't have the time to refine the medicinal power even with sufficient resources.

Only by descending to the realm of six realms and utilizing one's cultivation level can one digest the immense medicinal power of the resources.

[During your descent, you simultaneously plunder the treasure troves of the six realms' great families and, with your comprehension exceeding ten thousand, observe the Dao principles within your own body with your naked eye.]

[Without attaining true immortality and without achieving the Dao fruit, you can only see these Dao principles, but you cannot manipulate them or exert any influence over them.]

But you can understand them, and see the essence of things through them. For example, when charcoal burns, others can only see the charred wood and the flickering flames, but you can see the chemical formulas and the reactions between molecules.

The above is just an example. In reality, what you see is much more and clearer than chemical formulas. After all, the principles of Tao constitute everything in this universe and are the ultimate "reasons".

You frowned, carefully studying the principles governing your being, trying to figure out what had happened.

The principles governing even the smallest blade of grass and tree in this world are enough for a true immortal to study for a long time before fully comprehending. Even if your comprehension surpasses ten thousand, it is difficult to discern anything within the complex environment of the human body.

So you rewatched the future millions of times, and finally discovered a glimpse of the truth.

"Wait... Holy crap... no way?"

You originally thought that mechs were simply a manifestation of this system, and no matter how advanced they were, the quality of the Dao Seal was ultimately the same; you could only bring back the means.

But, but this...

"Whether it is or not, let's return to the truth first." You shook your head.

[In the future where you successfully break through this barrier, your original state will return to its true nature.]

[After returning to your original state, you've exhausted all the previous uses of the Descent ability, and you've entered what can be considered the most dangerous situation since you started rebuilding.]

But it is also more powerful than ever before!

"Human-machine integration, the divine machine begins!"

"Cloud Origin Celestial Venerable, unite as one!"

You spread your arms and merge into the tall machine behind you.

Before you, dozens of Abyss True Kings hesitate, staring at you, unsure whether to fight or flee.

You didn't give them a choice.

With a flick of the finger, exerting only one-thousandth of the force, an energy ray pierces the heavens and earth, sweeping across the ranks of True Kings with the flick of your fingertip.

[Cut open into three pieces on the spot!]

"This is impossible!"

[The Abyss Clan's True King Slime was cut in two. It shrieked as it closed its body. Even if its physical strength was relatively low, it shouldn't have been so easily cut apart.]

"Power...this power..." You extend the five fingers of your mecha, the tips opening to unleash five energy whips that stretch at 300,000 kilometers per second, slicing the Abyss Kings in their path into mincemeat.

Those small fry were wiped out in a matter of seconds. You don't have the energy to savor the feeling of a desperate comeback, to make them scream in despair, because none of that matters anymore.

"The reason it takes more than ten seconds is because the distance is too far, and the attack speed can only reach 300,000 kilometers per second."

What's important is your current state!