"Fifty-five thousand years? Perfect."
Instead of retreating, Bai Mu's eyes burned with battle intent.
This was exactly the kind of spirit ring he needed.
With the Blue Silver Emperor Right Leg Bone, Jungle Healing, the Indestructible Vajra Body, and the Ice-Fire Golden Body, if he couldn't survive this, then there was no point talking about limits at all.
Sometimes, a man had to be ruthless with himself.
"Z2, prepare to move!"
"Little Soft, Toxic!"
"Awoo—!"
The white Dragon Hound stepped forward as Z2 erupted with light.
Z-Cells surged, and amid flashing green radiance, Z2 transformed into a massive white serpent, immediately beginning Dragon Dance.
The Sonic Demon Dragon was alerted at once.
Its enormous head lifted slowly, dark-gold vertical pupils locking onto the intruders.
Before it could fully react—
Whoosh!
Purple light flashed beneath its body.
Dense poisonous miasma surged upward, and Toxic instantly invaded its system.
"Roar!"
The Sonic Demon Dragon reared back, the frills on its neck trembling violently as it counterattacked.
Buzz—
The air twisted visibly as an invisible tsunami of soundwaves spread outward.
The ground shattered, trees were pulverized, and rocks were reduced to powder.
"Protect! Thousand Wave Surge!"
Bai Mu pulled Little Soft in front of him and shouted.
Z2 unleashed Thousand Wave Surge, colliding head-on with the incoming sonic tide.
Wave after wave of invisible sonic booms was forcibly blocked.
At the same time, Little Soft raised a Protect barrier, completely shielding Bai Mu from the aftershocks.
The first exchange ended in a perfect neutralization.
"Let's finish this together, Z2!"
Bai Mu shouted as he mounted Little Soft and retreated without hesitation.
Z2 maintained Thousand Wave Surge, then unleashed Thousand Arrows Volley.
Attacks rained down from both sky and ground, leaving the Sonic Demon Dragon nowhere to evade.
"Roar—!!!"
Unfazed, the Sonic Demon Dragon stood upright.
The frills on its neck pulsed violently as blinding white light gathered in its throat.
Booming Roar!
Nearly solidified soundwaves erupted in a fan-shaped domain, annihilating everything in their path.
Thousand Wave Surge and Thousand Arrows Volley were halted completely.
A stalemate formed.
Z2 remained calm, continuing Dragon Dance while stalling.
The Toxic poison was already working—time was on their side.
"Roar!"
Sensing the poison worsening, the Sonic Demon Dragon could no longer endure it.
With a thunderous scream, it cleared the battlefield, then condensed a three-meter-wide sonic sphere in its mouth.
Demon Sound Brain Piercer!
The sphere shot forward at extreme speed, warping space itself.
"Extreme Speed! Dodge!"
Z2 vanished in a flash of white light, evading the attack and reappearing directly in front of the Sonic Demon Dragon.
Bang!
A brutal Tackle slammed into its face, forcibly snapping its jaws shut.
The massive body was hurled into a cliff, blood spilling from its mouth as the Toxic flared again.
"Roar—!"
The Sonic Demon Dragon spread its wings to take flight—
"Thousand Arrows Volley!"
Arrows fell from the sky, slamming it back to the ground.
White light erupted from the earth as Earth Divine Power detonated.
Countless vibrating pillars of light pierced upward, completely engulfing it.
Light arrows shattered its wings and scales as its screams echoed through the canyon.
The battlefield collapsed into chaos as desperate soundwaves tore everything apart.
Z2 had already retreated.
Five full minutes later, the sonic storm finally ceased.
The Sonic Demon Dragon lay among the ruins, its body entirely consumed by Toxic, barely clinging to life.
Only then did Bai Mu return with Z2.
"Let's end it."
Z2's power surged.
A stone spike erupted from the ground, piercing straight through the Sonic Demon Dragon's throat.
"…Ah…"
The fifty-thousand-year-old spirit beast let out a final unwilling cry as its pupils lost all light.
A deep black spirit ring slowly rose above its corpse.
"I'll be taking your power."
Bai Mu sat down calmly.
"Z2 Protector, assist me."
The white serpent guarded the surroundings while the black Dragon Hound settled into Bai Mu's arms.
Together, they closed their eyes.
Guided by spirit power, the black spirit ring descended, encircling both of them.
Terrifying energy flooded in like a breached dam.
Meridians groaned, bones trembled, and flesh endured relentless impact—
Yet Bai Mu's expression remained unchanged.
The Blue Silver Emperor Right Leg Bone activated, repairing damage while stabilizing the absorption.
Jungle Healing flowed over Z2, smoothing every injury.
Painful, but safe.
Everything was proceeding exactly as planned.
Half an hour later, Bai Mu's consciousness sank into his spiritual world.
Within it, the remnant soul of the Sonic Demon Dragon roared furiously, ripples spreading through the void.
"You think you can threaten me?"
Bai Mu remained calm.
"Little Soft."
Zygarde emerged in its Z-Serpent form, colossal and divine.
The dragon's roar died instantly under the crushing pressure of absolute authority.
Zygarde lowered its head without emotion.
Endless golden sands buried the remnant soul completely, reducing it to pure spiritual energy.
The soul vibration ended.
Information flooded in.
[Successfully absorbed the 55,513-year Sonic Demon Dragon spirit ring.
Obtained Fifth Spirit Ability: Booming Sound Demon Howl.]
Bai Mu froze.
"…A Douluo version of Boomburst?"
The ability was powerful—terrifying even—but it wasn't what he wanted.
This time, he needed enhancement.
[Available resonance replacement moves detected.]
His eyes scanned rapidly.
"…Found it."
[Fifth Spirit Ability — Soul Dance: Raging Sound Burst]
[Consumes up to one-third of HP and spirit power to increase all attributes by one stage.
Maximum increase: six stages (300%).
Fails if resources are insufficient or stats are capped.]