Harem Training System: Every Girl I Train Makes Me Stronger!

The day of the match arrived with an oppressive, sweltering heat that seemed to make the very air vibrate. Word had spread through the academy like wildfire; this wasn’t just another training exercise.

This was a collision of two unstoppable forces. A crowd had already gathered around the raised sand arena—students, instructors, and even a few weary knights from the garrison all drawn by the promise of seeing Lia’s disciplined precision clash with Kaela’s unbridled ferocity.

Since Grock’s masterwork was still weeks away, they had settled for basic, unremarkable practice gauntlets borrowed from the general stores.

They were heavy, unpainted iron that lacked mana conductivity, but they were sufficient to draw blood.

Lia stood at one end of the arena, her breathing slow and rhythmic. She held her greatsword in a measured, low guard, the tip tracing a lazy line in the sand.

Her mind was a fortress of calm. ’Focus on the center of gravity.’

’Watch the shift in her hips.’

’Don’t let her dictate the tempo.’

’Wait for the opening.’

Kaela was the opposite. She stood coiled at the other end, her bare feet digging into the sand, her knuckles already white against the iron gauntlets.

Her eyes weren’t just watching Lia; they were hunting her. ’Break through that wall.’

’Shatter that composure.’

’Make her bleed so she remembers what real violence feels like.’

"Begin!" the instructor called.

The silence shattered instantly. Kaela exploded forward.

She didn’t move like a student; she moved like a predator unleashed, her boots kicking up clouds of grit as she closed the distance with terrifying, reckless speed. Her first strike was a thunderclap, a straight right aimed directly at Lia’s temple.

Lia didn’t panic. She pivoted on the ball of her foot, the greatsword whistling through the air as she caught the punch on the flat of her blade.

The impact rang through the arena like a struck bell.

"You’re too eager," Lia called out, her voice steady despite the jarring shock traveling up her arms.

She redirected the momentum of Kaela’s punch with a fluid twist of her wrist, using the blade to guide Kaela’s fist harmlessly past her ear. The energy from the deflection fed immediately into Lia’s own building, Undertow Surge, a low hum of mana beginning to ripple through her muscles.

"You’re leaving your ribs completely exposed every time you commit to a punch that fully."

"I don’t need to defend my ribs if I hit you first!" Kaela roared, already spinning into a vicious left hook that forced Lia to abort her counterattack.

The fight descended into a brutal ballet of steel and sinew. Kaela was a hurricane of motion, unleashing a relentless barrage of strikes that forced Lia into a desperate retreat.

Lia’s greatsword became a barrier, a spinning wall of iron that parried blow after blow. The sound was deafening: the wet thwack of fist against blade, the grinding of metal on metal, and the ragged gasps of two women pushed to their absolute limits.

Kaela ducked under a wide horizontal slash that would have taken her head off, surging upward with a devastating uppercut. Lia twisted midair, but she wasn’t fast enough.

The iron gauntlet connected with Lia’s shoulder with a sickening crunch.

Lia gasped as pain flared through her collarbone, a white-hot spike that momentarily clouded her vision. Blood immediately began to seep through the fabric of her training tunic, where the impact had bruised the flesh beneath.

’Pain is information,’ Lia told herself through gritted teeth, forcing the agony into a small corner of her mind. ’She’s faster than I anticipated.’

’Her aggression isn’t just recklessness; it’s a weapon.’

’I have to stop playing defense.’

Seeing an opening, Lia lunged forward, the greatsword coming around in a vicious arc. Kaela anticipated it, twisting her body to take the blow on her forearm gauntlet.

The force was immense; the metal dented inward, and the sound of cartilage grinding against iron echoed off the arena walls. Kaela grunted in pain, but she didn’t back down.

Instead, she used the momentum to drive her forehead into Lia’s face.

CRACK.

Lia’s head snapped back. Blood sprayed from her split lip, painting her chin crimson. Her vision swam.

For a heartbeat, she saw stars.

"Stay down, Lia!" Kaela taunted, though her own forearm was already beginning to purple and swell beneath the iron. "Is that all the ’future officer’ has?"

Lia spat blood into the sand, her eyes narrowing with a cold, murderous focus. The Undertow Surge finally crested, the mana flowing through her limbs like liquid lightning.

"That’s not how defense works, Kaela."

"It’s how my defense works," Kaela shot back, winding up for a final, crushing blow that promised to end the match.

The exchange spiraled into something far more primal than a simple sparring match. For several more minutes, the arena became a crucible of sweat, blood, and grinding metal.

Kaela’s raw, undisciplined aggression was a storm of violence, but Lia was the cliff face unyielding, patient, and devastatingly precise.

Lia moved with the economy of a predator, her greatsword rising and falling in smooth, deadly arcs. Each time Kaela launched a haymaker that could have felled an ox, Lia wasn’t just blocking; she was redirecting.

The blade would catch a fist, slide along a forearm, and whip around to punish Kaela’s ribs. The accumulated momentum of every parry fed directly into Lia’s stance, making her movements feel heavier and more inevitable, as the Undertow Surge hummed beneath her skin like a live wire.

’She’s breathing harder,’ Lia noted clinically through the haze of adrenaline. ’Her left shoulder is dipping.’

’She’s favoring her right side because of that dent in the gauntlet...’

’Now...!’

Lia feinted a high slash, then dropped her center of gravity instantly. As Kaela braced for the overhead strike, Lia drove the pommel of her sword into Kaela’s solar plexus.

The sound was a wet thump, and Kaela doubled over mid-stride, gasping for air that wouldn’t come.

"Still too predictable, Kaela," Lia hissed, stepping inside Kaela’s guard to deliver a punishing kick to her thigh.

But Kaela was not a normal opponent. Even with the wind knocked out of her, her stubbornness manifested as something terrifying.

Instead of retreating, she leaned into the pain. As Lia moved to reset, Kaela exploded upward from her crouch, ignoring the agony in her gut.

She swung a wild, desperate hook that caught Lia square in the ribs.

CRACK.

The sound of Lia’s rib splintering echoed off the stone walls. Lia’s breath left her in a strangled wheeze, and for a terrifying second, her vision whited out.

Blood immediately began to trickle from the corner of her mouth. The crowd gasped as Lia staggered backward, her boots skidding through the blood-soaked sand.

’Damn it,’ Lia’s inner voice screamed through the fog of pain. ’Something broke.’

’I can feel it grinding when I breathe...’

’Focus... Don’t let the pain become the rhythm. ’

Kaela sensed blood in the water.

"Got you now!" she roared, charging forward with both gauntlets raised like sledgehammers.

Her face was a mask of crimson sweat and feral determination.

Lia’s instincts took over where her body failed. As Kaela closed the distance, Lia didn’t retreat; she stepped into the storm.

She twisted her torso, letting the first gauntlet graze her shoulder while she brought the greatsword around in a vicious, horizontal sweep. The blade caught Kaela across the midsection, the edge slicing through the training fabric and leaving a stinging red line across her skin.

The two collided in a tangle of limbs and steel. Kaela managed to grab Lia’s sword arm, her iron gauntlet grinding painfully against Lia’s wrist bone, while Lia shoved the blade’s flat against Kaela’s throat, forcing her back.

They stood frozen for three heartbeats locked in a stalemate of mutual destruction, both bleeding, both panting, both eyes blazing with a terrifying intensity.

Then, with a final surge of mana, Lia executed a perfect pivot. She used Kaela’s own forward momentum against her, spinning away while bringing the hilt of her sword up in a devastating strike to Kaela’s temple.

The blow didn’t break skin, but it rattled Kaela’s brain hard enough to send her stumbling backward. Before Kaela could regain her footing, Lia’s greatsword came to rest lightly against Kaela’s shoulder, the tip hovering just above her throat in a clean, decisive finish.

Silence fell over the courtyard. The only sound was the ragged, desperate gasping of the two combatants.

"I win," Lia announced.

Her voice was steady, but it wavered slightly at the end. She tasted copper in her mouth, and every breath felt like a hot knife twisting between her ribs.

Kaela remained on one knee for a moment, shaking, her chest heaving as she fought to reclaim her lungs. Then, slowly, a lopsided, bloody grin spread across her face.

She looked up at Lia, her eyes bright with something that wasn’t anger but pure, unadulterated competitive ecstasy.

"Rematch... Tomorrow."

Lia wiped a streak of blood from her lip with the back of her hand, looking down at her opponent. "You’re going to say that every single time, aren’t you?"

"Every single time," Kaela confirmed cheerfully, though she winced as she tried to stand. "Until I win!"

"Which will happen eventually. I’m very persistent."

"I’m aware," Lia said.

Despite the throbbing pain in her side and the exhaustion threatening to collapse her knees, something warm and fond crept into her exasperated tone.