My Ultimate Sign-in System Made Me Invincible Chapter 525 Breakthrough: Fourth Stage Evolved

In the Dimensional Space, Liam hovered cross-legged in mid-air, eyes tightly shut, as the golden radiance from Yanxia's Three-legged Crow form bathed him in gentle, rhythmic waves.

The breakthrough loomed near. He sensed it like the tense calm before a storm's initial raindrop. All was set, needing only that ultimate surge to propel him beyond.

He held his breaths even and bided his time.

Mind wandering, he recalled the cultivation boost cards. Their effects had expired days earlier, forcing him to rely on innate progress since—still outpacing any rival cultivator due to his unique Constitutions and the increasingly dense spiritual Qi within the Dimensional Space, yet strictly natural advancement.

The change struck the instant the cards lapsed. Not true frailty, but akin to wading through thick water after gliding effortlessly in open air.

His mind shifted to the sign-in.

Time had passed since his last use, and valid reasons explained the pause. Rewards remained bountiful, yet most system gifts demanded strength levels he hadn't attained.

Those items lingered unused in the Dimensional Space, collecting virtual dust as he strove to match their prerequisites. He wanted no additions to that growing stockpile.

Thus, he halted all sign-ins.

Today marked a change. After breaking through, he planned to sign in, eagerly anticipating fresh temporary cultivation boost cards. A single 100x card would suit perfectly; three would prove even superior. He tucked the idea away for later.

Another notion arose.

Why not purchase them directly?

The system store stood ever-ready. He accessed it right away, searching for cultivation boost cards.

Listings filled the screen without delay.

He froze, eyes bulging in astonishment.

He'd figured 100x as the maximum. That marked the peak he'd encountered and employed, but the display clearly showed no upper limit.

Both comprehension boost cards and cultivation boost cards stretched from 10x up to 10,000x, arrayed in neat ascending sequence alongside their costs.

He examined the prices with care.

A 10x boost card demanded 15,000 system points. With $10,000 per point conversion, it equaled $150 million—formidable for typical measures, yet negligible compared to Nova Technologies' monthly inflows.

Liam marked it as the starting point and scanned onward.

The 100x card required 300,000 system points: $3 billion for just one. Current funds covered it easily, and he'd grab it instantly if no better choices existed.

Next came the 1,000x card at six million system points, equaling $60 billion.

The 10,000x version below cost a jaw-dropping 120 million system points—$1.2 trillion equivalent.

He nodded thoughtfully, grasping the scheme. Each multiplier leap didn't merely raise the price—it skyrocketed exponentially, structured to render top tiers truly unattainable, beyond mere expense.

Such heights lay wholly beyond most mortals' grasp.

Liam's circumstances proved more intricate.

Cash reserves approached $5 billion. Yet he also commanded over 100 million Purple Grade Mana Crystals, vast quantities of gold coins from numerous sources, and substantial stockpiles of medium-to-high-grade spirit stones amassed since the spirit Qi lake surged into mass production.

System-rate conversion of the total yielded about 2 million system points.

A figure immense by virtually any benchmark, but still insufficient for even one 10,000x card.

He eyed the 100x cards once more and finalized his choice. Everything liquid would convert—all cash plus half the material assets: gold coins, mana crystals, spirit stones, fifty percent of each.

Conversion finished in a flash. Assets present one instant, vanished the next, replaced by 1,250,000 system points in his balance.

He snapped up four 100x temporary cultivation boost cards and three 10x temporary cultivation boost cards without a second thought.

5,000 system points left over.

Gazing at the seven cards in his inventory, a realization dawned that ought to have hit sooner.

Past activations involved only two cards simultaneously, though of varying multipliers. He'd never tested stacking identical multipliers together, whether effects multiplied across multiples, or if combinations faced any upper bound.

He chose to consult the system.

"System. What if I activated two or three 100x temporary cultivation boost cards simultaneously? Would the multiplicative effect kick in?"

[Yes, host. Up to three temporary cultivation boost cards can be activated at the same time. Multiplicative effects will stack across all active cards. Total boost is capped at 100,000x cultivation speed.]

His eyes widened in shock at the system's response. Three cards could activate together, with multiplicative stacking in play, capped at 100,000x.

The meaning hit him right away. Even a single 100x and 10x card had dramatically altered his cultivation progress, building up week by week.

Combining three cards, where they multiplied instead of just adding up, created a boost so massive it barely made sense. Plus, the 100,000x limit showed the system was built for this exact strategy, not some loophole he'd found.

His strength would surge beyond what he'd imagined just an hour earlier.

With no hesitation, he picked one 10x card and two 100x cards, firing them all off together.

[Activating x10 Temporary Cultivation Speed Card...]

[Activating x100 Temporary Cultivation Speed Card...]

[Activating x100 Temporary Cultivation Speed Card...]

[All cards now active. Effects stack multiplicatively for a total of x100,000 cultivation speed boost.]

[Duration: 30 Earth days left.]

The surge hit instantly and overwhelmingly.

Dark energy, mana, and spiritual Qi rushed into him from all sides at once.

Already thick with Yanxia's power and the endless flow from the Eternal Qi Vein, the Dimensional Space's air turned into a raging torrent with him right in the middle.

His Origin Devouring Body managed it effortlessly.

This physique existed for exactly that—devouring energy and refining it, merging three wildly different types clashing at mismatched frequencies into a single force his cultivation base could devour.

His cultivation base swelled to full in a flash. Like a basin overflowing in one breath, it slammed against the wall of his current realm with pressure no barrier could withstand.

The breakthrough crashed through like a wall crumbling, as an immense amount of Primordial Essence flooded his body.

Fourth Stage Evolved.