Crossing over with a system——I began cultivating from the womb

In that split second, a blazing, nameless fury erupted in Jiang Wuxu's chest like a volcano ready to blow.

Who the hell was he, Jiang Wuxu?

A goddamn supreme Saint Ancestor of the current era, a walking legend!

And his wife? She was the Frost Heavenly Emperor, a badass who could stare down the entire cosmos without blinking!

This old fart Mu Nantian had the nerve to waltz into his house and flex like some puffed-up peacock? Did he think I'd just roll over and kiss his boots?

Jiang Wuxu's face darkened like a storm cloud, and he was this close to unleashing a verbal smackdown.

But right at that moment—BOOM! A deafening roar exploded from the room behind him, shaking the freaking ground!

And then, a heart-stopping, soul-shaking force blasted out like a tidal wave, hitting everyone in the courtyard like a freight train!

This power was no joke—it was raw, primal, and absolutely terrifying, blooming outward in a dazzling burst.

In the wide-eyed stares of Jiang Wuxu and Mu Nantian, a blinding, radiant glow lit up the room like a supernova.

And through that light, they could see it—snap, crack, pop!—the invisible rules of heaven and earth snapping like brittle twigs under the pressure of this insane energy!

It was like some cosmic chain had been smashed to pieces by a godlike fist!

In that chaotic instant, the shattered laws of the universe twisted and tangled into a mind-boggling mess, a sight so wild it could make your heart skip a beat!

"What… what the hell is this…?"

"The Bone Tempering Extreme Realm?"

"Someone just broke the Bone Tempering Extreme Realm?!"

Mu Nantian stammered, his jaw practically hitting the floor.

He knew this vibe all too well.

Every Extreme Realm was a cosmic handcuff, a universal law chaining down every living being.

To climb to the top, you had to break those chains, rip them apart with your own power.

But… hold up!

How the hell was someone in the Frost Heavenly Emperor's room breaking through the Bone Tempering Extreme Realm right now?

This didn't make a lick of sense!

Mu Nantian's brain was doing cartwheels, trying to piece it together.

And then, like a bolt of lightning, it hit him.

His whole body froze, like he'd been zapped by a thunderbolt, and he just stood there, dumbstruck.

"The one who broke the Bone Tempering Extreme Realm… could it…?"

"Could it actually be the Emperor's Son?!"

Mu Nantian whipped his head around, staring at Jiang Wuxu like he'd just seen a ghost, his eyes practically popping out of his skull.

Jiang Wuxu, smooth as ever, reined in his emotions and flashed a chill, "no big deal" smile.

"Patriarch Mu, no need to lose your cool. It's just my kid kicking up a little fuss."

"Here, have some tea!"

He casually grabbed the teapot and topped off Mu Nantian's cup, looking like he didn't have a care in the world.

As if his son shattering the Bone Tempering Extreme Realm was just another Tuesday.

"It's… it's really the Emperor's Son?"

"But… he hasn't even been born yet, right?!"

Mu Nantian was straight-up flabbergasted, okay?

His brain couldn't even process the idea that the Emperor's Son had just smashed through the Bone Tempering Extreme Realm.

Wasn't he still chilling in the womb?

Somebody, anybody, please explain what the actual hell was happening here!

Had anything this batshit crazy ever gone down in the history of forever?

I'm losing my damn mind!

Didn't everyone say the Emperor's Son had some OP physique and the Frost Heavenly Emperor was just sucking up spiritual energy to toughen him up?

"No freaking wonder the Frost Heavenly Emperor was pulling in that much spiritual energy to temper the Emperor's Son!"

"Holy crap, it all makes sense now! It all makes sense!"

Mu Nantian blurted out, his face lighting up like he'd just solved the puzzle of the universe.

Now it was crystal clear.

The Emperor's Son wasn't just getting a spa treatment in the womb—he was cultivating in there, and he'd just bulldozed through the Bone Tempering Extreme Realm like it was nothing!

A five-or-six-month-old fetus, barely even a blip on the pregnancy radar?

Was this kid even human?

Was he still human?!

Mu Nantian's mind was spinning like a top.

Suddenly, his grandson's Absolute Spirit Sword Body didn't seem that special compared to the Emperor's Son pulling off this insane womb-cultivation stunt and breaking the Bone Tempering Extreme Realm.

Sure, the Absolute Spirit Sword Body was rare, but history had seen a handful of them over the eons.

But cultivating in the womb? That was some next-level, never-before-seen madness!

Across the table, Jiang Wuxu sat there with a polite, "oh, this old thing?" smile, sipping his tea like he was at a fancy brunch.

He looked as cool as a cucumber.

But inside? Inside, he was screaming with joy, doing mental backflips and high-fiving himself!

This kid was a champ!

I was just about to blow my top, and here you go, stealing the spotlight and saving face for your old man.

Didn't you, Mu Nantian, strut into my house to flex?

Didn't you think your Absolute Spirit Sword Body was hotter than my son?

Well, step right up, buddy—check out this slick move my boy just pulled!

Why don't you drag your grandson out here and show us what he's got?

Oh, wait—he's already seven years old!

Never mind, then!

Jiang Wuxu calmly watched Mu Nantian's face cycle through a rainbow of emotions, not making a peep.

In the courtyard, Su Qingtian, Su Qingyu, and the other two Mu family guys were also floored, their jaws practically on the ground.

But with two Saint Ancestors in the room, they kept their cool and didn't let it show.

One of the Mu family dudes, picking up on his patriarch's vibe, seemed to catch on to what was up.

After mulling it over, he secretly sent a telepathic message to Mu Nantian.

"Patriarch, are you worried our Mu family's divine child might not stack up to the Emperor's Son?"

Mu Nantian glanced at him.

The guy steadied himself and kept transmitting.

"I don't think the Patriarch needs to sweat it."

"He's the son of a Heavenly Emperor, with a killer bloodline. And the Heavenly Emperor's tricks? No way us mortals can wrap our heads around that. Sure, the Emperor's Son cultivating in the womb is wild, but who's to say the Frost Heavenly Emperor didn't pull some god-tier magic to make it happen?"

"Plus, if we're talking raw phenomenon size, our divine child's power was, like, several times bigger than the Emperor's Son's—not even in the same league."

"And swordsmanship? It's all about offense, baby. No matter how dope the Emperor's Son's special physique is, it might not hold a candle to our divine child."

Hearing this, Mu Nantian paused, letting it sink in.

Huh… that actually made a ton of sense!

With the Frost Heavenly Emperor's skills, helping a fetus cultivate in the womb didn't sound that far-fetched.

And the size of the phenomenon? That was a dead giveaway of how strong a physique was.

So, my grandson Mu Qingchen totally wasn't losing to the Emperor's Son.

With that, Mu Nantian felt a wave of clarity wash over him.

His confidence shot through the roof!

He let out a booming laugh, grabbed his tea, and took a big swig.

Then, turning to Jiang Wuxu, he launched into another round of over-the-top praise.

"The Emperor's Son is straight-up legendary!"

"Cultivating in the womb? Never heard of it, can't even imagine it!"

"If word of this gets out, I bet all three thousand domains are gonna lose their minds!"

Jiang Wuxu just smiled, not taking the bait.

Right then, the door creaked open, and a stunning, otherworldly figure stepped out.

Who else but Su Qingshuang?

Jiang Wuxu jumped up to help her.

Mu Nantian shot to his feet too, and with the two guys behind him, they bowed low, practically shouting in unison—Frost Heavenly Emperor!

Su Qingshuang gave a soft "Mm," waving for him to sit.

Even after tens of thousands of years, Mu Nantian felt like a nervous kid in front of a Heavenly Emperor.

It took him forever to chill out.

"I came here for two things," Mu Nantian said, finally finding his voice.

"First, to apologize to the Frost Heavenly Emperor."

"Second, to celebrate our Mu family's Absolute Spirit Sword Body and invite the Frost Heavenly Emperor and Saint Ancestor Wuxu to the banquet."

"I really hope you'll both do us the honor of attending!"

As he spoke, Mu Nantian whipped out a fancy gilded invitation and placed it on the table in front of Su Qingshuang with both hands.

"The birth of a genius in the Mu family is definitely worth celebrating," Su Qingshuang said, glancing at the invite before speaking in her usual cool tone.

She genuinely didn't give a damn.

The Absolute Spirit Sword Body was strong, sure, but could it guarantee an Emperor's throne?

If you can't become a Heavenly Emperor, you're just a bug in my eyes!

But hearing her, Mu Nantian went back into humble mode.

"Oh, no, no!"

"My grandson Qingchen's talent might be rare even in eons, but compared to the Frost Heavenly Emperor and the Emperor's Son, he's still small potatoes."

He said this, but his face screamed, "Yeah, right—like I believe my grandson's worse than you."

Su Qingshuang didn't bat an eye.

But Jiang Wuxu? He was starting to heat up again.

This old clown was getting cockier by the second!

Meanwhile, inside the womb, Jiang Yuqiong was lost in thought.

"That swordsmanship genius from before—his physique is called the Absolute Spirit Sword Body, right?"

"I wonder how it stacks up against my reward this time, the Flawless Sword Heart?"

He checked the system.

The mission reward had already dropped.

"System, fuse the Flawless Sword Heart!" Jiang Yuqiong barked, not wasting a second.