It's a pity that Gu Mo currently hasn't mastered too many abilities and skills in spells or superpower classes. His strong Spiritual Power can only be used for extensive exhaustion of energy or to augment the Demonic Power he just acquired—from just a trace of warmth at the beginning, to now, where it has grown considerably, like the blood coursing through his veins.

"It feels like I haven't slept in over a week..."

Looking at his reflection in the mirror, with a radiant Spirit, bright and lively eyes, he felt a sense of brilliance. Despite feeling delighted with his appearance, Gu Mo couldn't fully get used to it.

When his Spiritual attribute reached twelve or thirteen points, he could already function for two or three days without feeling overly tired or exhausted—as long as he worked under normal intensity and conditions. As it continued to increase, his energy became more abundantly powerful, able to support much higher intensity and longer durations of exhaustion.

As long as he's not overly exhausted, he inherently doesn't need daily rest. Coupled with leveling up every now and then during this period, his energy often wouldn't be fully expended before restoring back to full state. Every time he leveled up, he would inevitably strengthen his Spirit, continuing to elevate this value's intensity and limit.

The result is this current situation, where he seemingly hasn't closed his eyes in over a week, yet still looks vibrant and lively.

This state seems quite good, but the habits formed over more than twenty years of life are hard to change suddenly. Without the need for sleep, Gu Mo always feels like something is missing... He sighed; this scenario and the previous one are entirely different experiences.

In the last scenario, he couldn't get enough sleep; whether forcing himself to sleep or sleeping by force, most of the day was spent sleeping... However, in the current scenario, it suddenly reversed, with no need for sleep at all.

He tried to open the database, but nothing happened; it remained the same prompt as before, that this function couldn't be used during a mission... Thus, Gu Mo couldn't view the details of the achievement list, but he basically knew that the "25% Increased Experience Efficiency" bonus from the Beginner's Achievement Badge should be gone.

Because it was a bonus that only took effect before reaching Level 10 in any level, now that his Life Level has reached LV10, he naturally no longer met the criteria.

He slightly tapped his forehead in slight frustration, feeling that leveling up was becoming increasingly arduous. Having lost a bonus, the speed would likely slow down even further... Or perhaps this massive grinding of low-level monsters would only be effective in the early stages, winning by sheer numbers, while becoming more laborious and unrewarding as time goes on?

Thinking about how at LV8, he had to grind a multitude of spirits and monsters to fill half the experience bar, and after Demonizing, using the power of the Nine-tailed to knock down Visakha, the strongest Martial God, he immediately filled the remaining half of the experience bar in a short time, Gu Mo became somewhat contemplative.

He gathered his thoughts, browsed the system panel, feeling slightly disappointed. Originally, he thought reaching Level 10 would be a small milestone, but the system seemed to have no special reaction?

He opened all options for a look, even the Guardian Spirit's panel, but apart from both Guardian Spirits leveling up due to recent usage, there seemed to be no significant changes, except for each gaining a skill called "Summoned Spirit."

This was one of the cards he relied on for guarding Visakha when going out during this period.

"Nothing in the inventory either, how stingy..."

The good mood of the evening dissipated all of a sudden, and Gu Mo was about to close the system page unenthusiastically. However, at the last moment, he hesitated and clicked on the store page.

Then—

The function that should have been unusable during a mission, like the database, actually opened.

However, what appeared before him was not a normal store page with no sections for daily specials or limited card pools; the middle of the page had only a single image—a glaringly attractive golden Treasure Chest with a very crude but eye-catching effect.

"Level 10 Growth Pack (requires any level to reach Level 10, can be purchased only once)."

There really was something...

Gu Mo was a bit surprised, but after scrutinizing, he found something amiss—it was showing a purchase option, not a collection... The purchase requirement was precisely three Silver Keys, seeming to have set the exact pricing based on his entire assets.

Moreover, behind the purchase option, there was a bold red countdown, currently showing just twenty-three hours remaining...

Calculating carefully, it started right when he leveled up to 10; this made Gu Mo's expression quite complicated, truly, a dog system will always be a dog system.

Grudgingly, he lightly tapped on the three Silver Keys in his inventory, and gritting his teeth, clicked on the purchase option. The confirmation page popped up, providing further details about the growth pack—"Randomly obtain various items to accelerate and assist your growth."

Random...

Various...

—Look at these keywords!!

So it means the prize pool isn't even fixed, and if luck isn't on my side, I'll have to accept whatever comes? This "growth pack" might just turn out to be an intelligence tax hamper if all junk pops out! What kind of growth assistance does that count as?

Gu Mo's expression was clearly tormented, but observing the bold red countdown, he gritted his teeth and resolutely chose confirm.

He bet on it! If it indeed turns out to be full of garbage, it'll serve as an early paid lesson, never to touch the system's gacha-style offerings again!

As the three Silver Keys were deducted from his inventory, the air before him undulated, twisting to reveal a heavy door standing in the middle of his bedroom.

Having had similar experiences with opening the Treasure Vault before, Gu Mo was not surprised, roughly understanding the mechanism. He reached out, vigorously rubbing the smooth and silky fur of the big fox beside him, believing it brought him Lucky:

"Counting on you for the good stuff!"

The Nine-tailed Fox, invisible to ordinary people, tilted its head, calmly observing his figure.

Gu Mo took a deep breath, stepped forward, pushed open the Treasure Vault door, and walked straight into the unknown dimensional space behind the door. The scene before his eyes rapidly transformed into the dazzling, treasure-laden backdrop of gold and silver mountains he remembered. The setting was the somewhat gaudy Treasure Vault hall.

In the central space up ahead, several evenly arranged jade platforms appeared, each displaying an item glowing with different quality colors.

He stepped forward, looking at the item on the first platform on the left, feeling a sudden jolt—it was a shriveled fruit, seemingly drained of all nutrients... His first reaction was that the system was overdoing it, using such trash to fill up.

At this moment, the detailed item information emerged before him.

........

"Dried Persimmon."

"Origin: Valley of Fall, White Snake God Cave."

"Quality: Rare."

"Note: Dried from the pericardium of the White Snake God, though it resembles a persimmon in appearance, the snake lung is an organ hosting a Divine Soul. It's rumored that the inhabitants of the Valley of Fall revere the White Snake God and regard the dried snake lung as a sacred offering..."

........

Gu Mo was slightly stunned, this thing seemed quite familiar.

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