This fog was none other than the effect of Aizen's "Kyōka Suigetsu"!
In his Reiatsu state, this fog's range, intensity of mental interference, and distortion of light were far greater than before. Even a powerful shinobi like Kosa couldn't help but experience a moment of hesitation!
A golden opportunity!
Aizen instantly unleashed a high-pressure Water Severing Wave from his mouth, aimed directly at Kosa's vital point!
In his Reiatsu state, all of Aizen's ninjutsu received a significant boost! The Water Severing Wave appeared before Kosa in the blink of an eye, with speed and power far exceeding its normal level! By the time Kosa broke free from the illusionary fog's influence, it was too late to dodge.
"Scorch Release!" In a desperate move, Kosa activated her strongest trump card! Her entire body was enveloped in turquoise chakra, and her skin took on the characteristics of both wind and fire!
She intended to use this to defend against the Water Severing Wave's attack!
Bang! Kosa's body was struck by the immense impact of the Water Severing Wave, sending her flying dozens of meters through the air. A trickle of blood escaped from the corner of her mouth. Scorch Release was clearly not a defensive Kekkei Genkai!
Although Scorch Release had mitigated the lethal cutting force of the Water Severing Wave, its residual impact still inflicted significant damage on Kosa! Her beautiful face was now contorted in pain! She glared at Aizen with intense resentment and hatred!
To think that she, a peak-level elite Jonin and a renowned powerhouse in the entire ninja world, had suffered such a humiliating defeat at the hands of a mere twelve or thirteen-year-old boy who wasn't even a full-fledged Jonin!
This immense shame nearly drove Kosa mad!
However, while Kosa was consumed by rage, Aizen had silently closed the distance between them!
"Eight Gates... Gate of Pain, open!" "Eight Gates... Gate of Limit, open!"
Aizen's chakra surged, and his body was enveloped in green chakra steam! Having opened the Fifth Gate of the Eight Gates Released Formation, Aizen's overall strength increased once more!
Moreover, as Aizen moved with Shunpo, Kyōka Suigetsu in his hand radiated a powerful aura! This attack was so potent that even an average Kage-level shinobi wouldn't dare to face it head-on! Even Kosa, who had temporarily attained average Kage-level combat power by activating Scorch Release Mode, paled and frantically attempted to evade!
However, Aizen, now in close proximity, was no longer the "distant mage" he had been before! Did she really think she could escape so easily?
As Kosa initiated her evasive maneuver, Aizen, relying on his unparalleled reflexes, swiftly twisted his waist and changed his sword stance, slashing towards Kosa's exposed blind spot!
Kosa was terrified, desperately channeling her chakra to narrowly dodge the strike. But Aizen's relentless swordsmanship continued, his blade striking at tricky angles and unpredictable timings, forcing Kosa into a desperate dance of evasion.
After a while, Kosa, having exhausted a considerable amount of chakra and energy, could no longer endure. She realized that if she continued this close-quarters combat with Aizen, she would inevitably be slain by his blade the moment her defenses faltered! Therefore, Kosa prepared to pay a heavy price to create distance between them.
As Kosa thought of this, embarrassment washed over her. In the past, activating her Chakra and utilizing her exceptional speed and aerial advantage, she overwhelmed opponents with powerful ninjutsu attacks from all angles, wearing them down.
Unexpectedly, the tables had turned today. Aizen, this enigmatic adversary, possessed the ability to fly, adding to Kosa's frustration. Over the past six months, Aizen had not only mastered the Eight Inner Gates up to the Gate of Death but had also awakened his Shinigami Reiatsu through a unique fusion with natural energy.
With a ruthless glint in her eyes, Kosa focused her immense chakra, compressing it into a concentrated sphere of Inferno Style energy. The sheer intensity of the chakra forced a Aizen to retreat hastily.
BOOM!!
Just as Aizen withdrew, a massive explosion erupted from Kosa's body. Despite taking defensive measures, the blast shredded her clothing and left her drenched in blood.
Observing this self-destructive display, Aizen couldn't help but grimace at the woman's ruthlessness.
Kosa, now with disheveled hair and blood-smeared face, bore little resemblance to the elegant figure she had presented earlier. She now resembled a madwoman escaped from an asylum.
A series of chilling giggles escaped Kosa's lips, causing even Aizen to shiver.
"Aizen, you will die!!" she screeched, her turquoise chakra surging and splitting into numerous clones.
With a wicked grin, Kosa unleashed her ultimate technique: "Inferno Style: Burning Ash Accumulation Explosive Clone Technique!!"
The clones crackled with fiery energy, their destructive aura sending shivers down Aizen's spine.
"Go!" kosa commanded, her eyes fixed on Aizen.
The clones, fueled by explosive chakra, surged toward Aizen with blinding speed, easily outpacing the average Jonin-level opponent.
Aizen, seemingly unable to match their speed or defenses, was engulfed in a series of deafening explosions. The blasts, spanning hundreds of meters, sent smoke and flames soaring into the sky for miles. Escape seemed impossible.
Kosa, witnessing the earth-shattering explosions, smirked. Victory seemed assured.
However, just as Kosa basked in her apparent triumph, Aizen's figure materialized behind her.
History seemed to repeat itself. It appeared Kosa would suffer the same fate as Aizen's previous opponents - a swift and decisive death.
Or would she?
As Aizen raised his Kyōka Suigetsu, aiming for Kosa's heart, her smirk only widened.