Reborn As a Villain Son With The Strongest Wife-Chapter 4: A Villain’s Training Begins

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Morning came too fast.

I barely got any sleep after the fight last night. Not because I was tired—but because I was excited.

If Ironhorn was already this strong, then how far could he go?

I wanted to find out.

Which is why, at the crack of dawn, I was already in the Valtara Training Grounds, stretching my arms.

"Alright, Ironhorn," I said. "Time to get stronger."

The little rhino snorted, his golden eyes gleaming. "Hmph. I was born strong."

I smirked. "Then let's make you even stronger."

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Training Regimen: Day 1

The first step to getting stronger?

Endurance.

"Alright, listen up," I said, patting Ironhorn's head. "You're already a walking tank, but what happens if we take that defense to the next level?"

He tilted his head. "...I become an unbreakable god?"

I chuckled. "Exactly."

So we started training his durability.

Step one?

Getting hit.

I ordered three elite knights to attack Ironhorn with full power.

At first, they hesitated.

"But Young Master... wouldn't that be too dangerous?"

"Trust me," I grinned. "He can handle it."

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And I was right.

Swords clashed against his Titanhide Armor—but not a single scratch appeared.

Magic spells exploded against him—he didn't even flinch.

After ten minutes, the knights were panting, exhausted.

Ironhorn?

He yawned.

"Pathetic," he muttered.

I smirked. "Not bad."

Now, onto the next phase—

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Training Regimen: Day 2

Now that we tested Ironhorn's defense, it was time for his attack power.

I needed to push his Doom Charge skill to the next level.

So I set up boulder targets across the field.

"Ironhorn, let's see how strong your charge really is."

He snorted and lowered his head.

Then—

BOOOOOM!

He rushed forward, his body glowing with power.

The first boulder? Shattered.

The second? Crushed to dust.

The third? Completely obliterated.

The shockwave was so strong it even sent me stumbling backward.

I blinked.

"...Okay. That's overkill."

Ironhorn turned to me, looking way too smug. "Told you I was born strong."

I chuckled. "Let's push it even further."

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Training Regimen: Day 7

One week passed.

Ironhorn had grown stronger at an insane rate.

His defense? Now tough enough to tank direct sword slashes from high-ranked knights.

His Doom Charge? Capable of collapsing entire rock formations.

And the best part?

He was evolving.

His small frame was now bulkier, his silver horn sharper, and his eyes glowed with power.

[ Ironhorn, the Indomitable Rhino has leveled up! ]

I clenched my fists.

This was only the beginning.

If I wanted to rewrite fate, I needed to get even stronger.

And I knew exactly what to do next.

"Ironhorn," I said. "Tomorrow, we're leaving the estate."

He tilted his head. "Where to?"

I smirked.

"To the Forbidden Beast Forest."

The place where only monsters roamed.

Where heroes feared to tread.

If I wanted to grow stronger, I needed real battles.

And no one was going to stop me.