Demon Slayer: Strength Gained with Every Swing of the Sword

A smile appeared on Feng Yu's face, reminiscent of the expression Akaza had given him earlier when he invited him to become a demon.

"Such a pity. You are a demon, yet you'll never learn!"

Akaza's face darkened, the air around him thickening with a murderous aura. It felt as if it might solidify into water at any moment.

"A mere human... a mere human dares to mock me, a demon!"

Akaza was enraged. Earlier, he had been treating their fight with an air of amusement, but now, that was no longer the case. He was genuinely furious.

A far more violent aura surged from Akaza's body, and Feng Yu's seventh sense went into overdrive, issuing frenzied warnings.

Clang!

The sword, Onikiri, blocked in front of Feng Yu, his expression grave as he focused on Akaza.

"I... I'm going to kill you!"

Akaza muttered through clenched teeth.

"Destruction Kill – Final Form – Blue Silver Shattered Light!"

Blue snowflake-like runes appeared beneath Akaza's feet, and countless blue needles swarmed around him.

"Die!"

The needles shot out with terrifying destructive power, bursting outward like missiles.

The missiles moved at an unimaginable speed, almost reaching the extreme, and when they hit anything, they exploded violently.

"Total Concentration: Water Breathing – Eleventh Form: Calmness of the Wind!"

A blue horizontal plane appeared, forming a visible barrier to block Akaza's attack.

"Not enough, I can't stop it!"

The blue barrier began to crack as Akaza's relentless assault continued.

Boom!

The barrier shattered, and the immense shockwave sent Feng Yu crashing into the ground, leaving a massive crater in his wake.

"Destruction Kill – Fragmented Form – Myriad Leaf Flashing Willow!"

Akaza's figure suddenly flashed above Feng Yu, and he swung his fists down toward him with tremendous force.

Boom, boom, boom!

The punches rained down like a thunderstorm, hitting Feng Yu with such force that the ground beneath cracked in patterns like leaf veins.

Feng Yu quickly dodged, narrowly evading Akaza's punches.

But Akaza didn't give him a moment to breathe.

"Destruction Kill – Leg Form – Crowned Slash!"

Akaza launched a brutal upward kick aimed at Feng Yu's head.

The force shot into the sky with a roar.

Feng Yu tilted his body backward and quickly retreated to avoid Akaza's close-range attack.

Before long, Akaza unleashed his 乱式 (chaos-style).

Around them were massive craters from their earlier battle, broken tree trunks scattered on the ground, and soil flying in the air.

Feng Yu desperately used Onikiri to block Akaza's attacks, his clothes already torn by the shockwaves, revealing his muscular body.

Blood flowed from his body—though his physique was at a terrifying level, so strong that even Swords struggled to harm him—now blood was seeping out.

The smell of his blood provoked Akaza's senses.

"What a tempting scent... I've made my decision. I will devour you!"

Akaza shouted, his attacks becoming even more violent, forcing Feng Yu to retreat.

As he was blocking Akaza's blows, Feng Yu quickly checked his sword count.

He froze in shock. The counter had surpassed 11 million.

Seeing himself gradually falling behind, Feng Yu gritted his teeth and immediately invoked his mental power secret technique.

In an instant, 5 million sword strikes vanished from his total, and Feng Yu's heart bled. He had only just reached a vast amount, only to lose half in one go.

"Truly an epic secret technique..."

Feng Yu recalled the rare classification of this skill.

"Congratulations, the mental power secret technique has reached the peak stage!"

Boom!

Feng Yu suddenly felt everything freeze around him, as though he were airborne. When he looked down, both he and Akaza were completely still.

"What is happening?"

Feng Yu was confused.

Then, the scene shifted again. He saw faint blue figures surrounding all living beings—humans, animals, and plants.

"Is that their soul?"

Feng Yu wasn't sure, but he could clearly see Akaza's soul, with a woman embracing it.

"Is that... Akaza's former lover, Koyuki?"

The figure of Koyuki seemed to sense Feng Yu's gaze and slowly turned her head to lock eyes with him.

"Please... please save him..."

Koyuki's tear-filled voice whispered.

"Please... save him..."

Feng Yu was stunned. He hadn't expected that Koyuki's soul could sense him.

He tried to speak, but before he could, a powerful, irresistible force began pulling him toward Akaza's body.

Time immediately resumed its flow.

In that instant of spiritual entry, Feng Yu hesitated for a second, and Akaza seized the opportunity to strike him away.

"Ugh!"

Feng Yu spat out blood, the immense force sending him flying into a mountain crevice.

"My organs feel like they've been shattered..."

Feeling the internal damage, he quickly took a healing pill from his system, swallowing it to begin recovery.

As the medicine took effect, his injuries slowly healed.

"Strange, I can see my body's meridians..."

It was then that Feng Yu realized he could now perceive his internal structure. The world around him seemed empty, almost like a blank canvas.

Feng Yu couldn't understand what was happening, but he could feel an endless surge of power emanating from within his body in this state.

He didn't have time to think further, as Akaza's next attack arrived.

But now, after adjusting his state, Feng Yu found that Akaza's attacks were slower. He could see Akaza's full skeleton and blood vessels. The sight of his red heart thumping made Feng Yu hear its rhythmic beat.

Boom!

Feng Yu blocked Akaza's punch, but this time, he stood firm without budging.

"Total Concentration: Water Breathing – Seventh Form: Rippled Wave Strike!"

Akaza's eyes narrowed. A sword appeared before him, emanating a dark, evil energy. He tried to dodge, but the flow of time around him seemed to slow, and he couldn't escape.

Swish!

Onikiri cleaved through Akaza's body, severing half of him.

"That strike... you've entered the Supreme Domain..."

"Why... why is it that a mere human... has stepped into the Supreme Domain faster than I have?!"

Akaza roared, his body quickly regenerating.

"Destruction Kill – Demon Core Eight Layers!"

Akaza's figure multiplied, now appearing in eight different places, each one aiming to strike at Feng Yu.

Boom, boom, boom!

The explosive sounds echoed throughout the mountain, and the area surrounding Feng Yu began to sink as destructive energy erupted to its maximum. The surrounding ground cracked, trees were uprooted by the powerful air currents, and sent flying far away.

As the smoke settled, Feng Yu stood at the center, seemingly untouched.

"It's impossible!"

Akaza howled in fury.

"You really have entered the Supreme Domain, just like Kokushibo..."

Akaza couldn't believe it, but he still sent more of his needles toward Feng Yu.

However, a hint of hesitation flickered in his heart.

"Total Concentration: Light Breathing – Fifth Form: Flash of Light!"

A blinding yellow light shot toward Akaza.

"Damn!"

Akaza quickly threw a punch to intercept, blocking Feng Yu's attack.

Boom!

The collision sent shockwaves through the surrounding trees.

Feng Yu saw his attack blocked and immediately swung again, severing Akaza's arm.

Blood splattered across the ground.

Akaza quickly retreated, putting distance between them.

"Destruction Kill – Final Form – Blue Eyes Shattered Light!"

Needles appeared once again.

Feng Yu immediately deployed the Eleventh Form: Calmness of the Wind to block.

But this time, Akaza turned and fled.

Feng Yu was about to chase, but then a chilling scream stopped him in his tracks.

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