Here is the English translation for Chapter 139, formatted with clear syntax, polished grammar, and an engaging narrative style tailored for Western fantasy readers, maintaining proper character consistency (including Barsha as a female squad leader):

139. Commander Yarko Arrives

Astro observed that the regular military task force pinned down by the dark horde was a split division operating under the direct command of Master Gonan—his own former mentor. Master Gonan was cutting down numerous dark operatives with fierce resolve, yet his troops were rapidly becoming overwhelmed, prompting the veteran master to bark out orders to tighten their defensive ranks.

"Master Jinho, we need to relieve the defense force! They're struggling against the dark army's onslaught!"

Astro was eager to reinforce the military division, but standing directly in their path was one of the Five Gates. Zagar had no intention of allowing the young vanguard to merge forces with the struggling military task force.

Yet the seven Sky Squad members showed no trace of fear before a dark general. Having pushed their cultivation parameters to an absolute peak during their hellish conditioning, they drew their armaments without hesitation. Watching the seven young warriors face a member of the Five Gates without a flinch, Grandmaster Jinho felt a sudden surge of pride, a long-extinguished fire igniting within his chest.

"Move through Zagar and shatter their dark vanguard!" Astro bellowed, surging forward with his longsword. Synchronizing his internal core with environmental mana, he charged at Zagar without a shred of hesitation. Beside him, Domar leaped into the air, spinning like a kinetic drill with his dual short spears.

Their synchronized dual assault struck straight at Zagar. Acknowledging the impressive speed of the two youths, Zagar raised both hands, manifesting dense barriers of dark magic to intercept their blades.

BOOOOOOM!

Zagar sneered with sinister delight, thoroughly enjoying the clash. With a violent thrust of his palms, he released a kinetic shockwave that blasted Astro and Domar backward. Before the two young warriors could arrest their momentum mid-air to prevent crashing into the ancient trees, Zagar materialized before them, his palms dripping with volatile dark magic.

"Die, greenhorns!"

SWOOOSH! BOOOOOOM!

Zagar's eyes flicked upward as a sudden, massive firestorm descended directly onto his trajectory. Grandmaster Jinho had intervened, unleashing a concentrated column of roaring elemental flame directly between Zagar and the two falling warriors.

The resulting explosion forced Zagar to disengage, shifting backward like a flickering dark shadow. Though Jinho's fiery counter failed to strike the dark general directly, it bought Astro and Domar the critical seconds needed to recover their footing.

Receiving a swift hand signal from Grandmaster Jinho, the remaining five Sky Squad members—Midan, Hamda, Namud, Mega, and Aria—dived into the chaotic melee below to reinforce Master Gonan's military task force. Moving with fluid, high-speed maneuvers, the five operatives unleashed their newly refined techniques, turning the dark vanguard's flank into a bloody battlefield.

Master Gonan looked on in astonishment. The combat efficiency displayed by the Sky Squad members rivaled his own parameters. Their arrival served as the turning point for the engagement; the military task force, which had been pushed to the brink of collapse, rallied as the five young warriors carved a path through the dark army's lines.

Is this the true yield of Jiro's hellish training regimen? Gonan marveled inwardly. Their parameters had elevated exponentially. Glancing toward the sky, he noted his disciple Astro engaging a formidable dark general mid-air.

Gonan recognized the hovering dark figure as the commander of the dark horde—one of the legendary Five Gates.

Refocusing his intent on the surrounding horde, Master Gonan swept his ancestral staff in a wide arc, channeling a torrent of azure fire that blasted a dozen dark operatives backward. Yet despite sustaining heavy kinetic damage, the transformed dark operatives staggered back to their feet, surging forward once more.

Simple strikes were insufficient; halting a dark operative permanently required catastrophic organ destruction or complete kinetic disintegration, severing their ability to absorb dark magic to mend their vessels.

Without a lethal, decisive blow, these dark cultists—who had traded their human souls for demonic power—would rapidly regenerate from minor wounds. However, applying concentrated, high-yield damage overwhelmed their regenerative properties entirely.

Their absolute fatal vulnerability was decapitation—severing the head or obliterating the brain stem.

"Target their heads! Decapitate them!" Master Gonan bellowed, his command instantly echoing across his troops and the Sky Squad operatives. Coordinating their strikes, the joint force targeted the dark operatives' neck joints, accelerating the purge.

High above the canopy, the battle raged on as Zagar found himself encircled by Grandmaster Jinho, Astro, and Domar.

Recognizing that his opponents commanded high-tier parameters, Zagar decided to end the duel quickly, deploying his full Demon Transformation. A terrifying shockwave of dark magic erupted from his vessel as his frame expanded, sprouting jagged scales and lethal talons while his upper torso swelled with unnatural muscular mass.

Black, pulsing veins bulged across his mutated skin. The pressure exerted by Zagar's transformation generated a crushing aura field, forcing Jinho and the two young warriors to deploy defensive barriers to withstand the force.

Though heavily pressured by the dark aura, Astro and Domar immediately drew upon atmospheric mana, harmonizing their internal cores with environmental energy. Their two months of meditative conditioning paid off, allowing them to absorb the surrounding natural elements to neutralize Zagar's aura pressure. Had they lacked this technique, the shockwave alone would have blasted them across the forest, inflicting severe internal trauma.

Grandmaster Jinho held his ground, his staff glowing brightly as he braced against the dark general's unbridled force.

"HAAAAA!"

With a deafening bellow, Zagar vanished from sight, moving at blinding speeds like a streak of dark lightning. He materialized directly above Astro and Domar, who were still stabilizing their defensive barriers. Swinging his massive, taloned arm, Zagar unleashed a arc of condensed dark energy. Though the two warriors reacted instantly, executing high-speed evasive maneuvers, the sheer area of effect caught them in its wake.

The kinetic blast hurled them through the air, crashing hard into the ancient trees below.

What terrifying power! Such was the absolute strength of the Five Gates. Though coughing up blood from internal injuries, Astro and Domar stood back up, their bodies mending at a visible rate. The purified essence of the Heart Dragon stored within their cores accelerated their cellular recovery while drawing in environmental mana to replenish their stamina.

Above the canopy, Grandmaster Jinho engaged Zagar one-on-one. Leveraging decades of martial mastery, Jinho matched the transformed general blow for blow, his absolute defensive barriers deflecting Zagar's high-yield strikes.

Yet Zagar's relentless assault was steadily pushing the old master back. Seizing an opening, Astro and Domar launched a simultaneous pincer attack from both flanks. Caught off guard by their rapid recovery and exploding aura output, Zagar was forced to shift his palms to block the incoming strikes, interrupting his assault on Jinho.

As the three combatants locked their energy outputs in a high-density stalemate, Grandmaster Jinho spotted a critical opening. Channeling his core aura, Jinho condensed a massive sphere of elemental energy overhead, slamming it down directly onto Zagar's position.

BLAAAAAMMMMM!

Elsewhere in the forest...

Aji's wooden staff collided with Denta's dark scimitars, producing a shockwave that resonated through the surrounding space. Gale-force winds whipped through the clearing, bending ancient trees like blades of grass.

The shockwave rattled the combatants engaging on the forest floor below. This was a collision of supreme parameters—a duel between absolute grandmasters. The extreme thermal energy generated by their clashing aura set the surrounding foliage ablaze, clearing a wide open arena amidst the dense woodland.

Denta's lieutenant, Saga, glanced up at his master, shocked to see Denta forced to fight at full capacity. Meanwhile, Saga was struggling against two young Sky Squad operatives: Gayatri and Nora, who were steadily driving him back.

Driven by survival instincts as his master fought an all-out war, Saga unleashed his full power. Deploying the highest tier of Demon Transformation, he surrendered his mind entirely to dark magic, his physical vessel expanding until his skin threatened to burst.

Gayatri and Nora recognized the sudden shift in their opponent. Saga's mind had been completely swallowed by demonic instincts, transforming him into a raging abomination that spewed torrents of pitch-black fire across the clearing like a wild dragon. Gayatri deployed a high-density aura barrier to shield herself, while Nora planted his broadsword to brace against the heat.

Scorched earth and burning wood covered the battlefield as the clash intensified. Observing the situation, the surrounding horde of dark operatives surged forward to swarm the seven Sky Squad members.

Crisis!

Just as the dark horde launched their swarming assault, a volley of luminous energy projectiles rained down from the canopy, striking the front lines of the dark army. A heavy military task force, led by Commander Yarko, had arrived on the field.

Commander Yarko raised his spellsword, channeling a pillar of radiant aura that pierced the clouds above. Recognizing the signal, his troops charged into the fray. Sweeping his blade forward, Yarko executed an advanced Swordsmanship technique, discharging a blinding arc of sword energy that crackled like celestial lightning. The shockwave severed the dark horde's advance, shielding the Sky Squad from being swarmed.

The regular military task force collided with the dark army in a massive clash of steel and magic. Commander Yarko carved through the dark operatives' ranks, shattering their dark formations with effortless precision. His mastery over magic-infused swordsmanship was absolute, operating at the pinnacle of his cultivation.

Inspired by Commander Yarko's display, the military task force fought with renewed vigor. This was open war against the dark army—the moment they had trained for.

BOOOOOOM! BRAAAAACK!

With military reinforcements securing the field, Gayatri executed a specialized technique, manifesting four human-sized energy constructs forged of dense, radiant mana, each wielding luminous energy chains. As the mutated Saga raged uncontrollably, Gayatri's four constructs lunged forward, entangling the abomination in a tight pincer grip.

The energy chains whipped around Saga's limbs, locking his movements in place. Saga thrashed wildly, but the binding force held firm. Gayatri maintained absolute concentration, channeling her internal core to keep the high-tier restraint locked around the mutated monster.

Nora spotted the golden opportunity. Now! Leaping high into the air with his massive broadsword, he condensed a whirlwind of atmospheric mana around the steel blade, turning the tip into a roaring tornado of kinetic energy.

"HAAAAA!"

Nora descended like a meteor, channeling the full weight of environmental mana into a devastating downward slash. His broadsword sliced through Saga's mutated vessel, cleanly bisecting the dark lieutenant mid-air.

BOOOOOOM!

Nora landed heavily as Saga's corrupted frame detonated into a cloud of dark mist, completely destroyed. As the dark particles dissolved into nonexistence, Gayatri redirected her four energy constructs to assist the regular military task force, sweeping through the remaining dark operatives.

Gayatri looked up toward the sky. High above, Aji and Denta were locked in an apocalyptic aerial duel, their continuous collisions producing blinding flashes of light. To an ordinary observer, their movements were an unresolvable blur, each collision generating kinetic shockwaves that vibrated through the earth below.

It was a clash of divine parameters!