One Piece: Kaido's adopted son, starts with the Eight Gates Formation.

"I've said it before, it's all meaningless."

He slowly tore open the front of his shirt, revealing the empty number that represented nothingness.

"4".

Then, his body underwent another mutation that sent chills down everyone's spines!

"Second stage, return to the blade."

Dark green spiritual pressure poured down like a torrential downpour, as if the sky had been splashed with a thick, unyielding layer of despair.

Under everyone's watchful eyes, Ulquiorra's body underwent its second and final transformation. The black-winged demonic wings on his back seemed like a fragile cocoon, and with the sounds of bones shattering and reforming, an even more ferocious and ominous form emerged. His lower body transformed into a black beast's form, covered in rough fur, and a long, powerful tail with a blade-like tip slowly swung, each swing accompanied by a shrill shriek as if space itself were being torn apart. His previously shattered mask vanished completely, replaced by black tear tracks extending from the corners of his eyes to his jaw. The last trace of humanity in his emerald eyes faded, leaving only pure, cold, absolute nothingness, as if it had existed since the beginning of the universe.

The second stage is a return to the blade.

This was a form of despair that even Aizen had never seen before, a form unique to Ulquiorra Cifer, the deepest form of despair.

That power was no longer merely an imposing spiritual pressure; it had sublimated into a "concept," a "domain." Within this domain, "hope," "life," "meaning"... everything was being relentlessly diluted and decomposed, ultimately leading to the only endpoint—"nothingness."

"This is……"

On the distant battlefield, Stark, the First Blade who was fiercely clashing with Kenpachi Zaraki, suddenly froze. He could feel Lilynette within him trembling uncontrollably; it wasn't fear, but a kind of instinctive submission to a higher-level being on a spiritual level.

"That guy... he actually had such power hidden..." Stark's languid expression vanished completely, replaced by an unprecedented solemnity. He had always thought he was the strongest Espada, but now he realized that the eternally expressionless Fourth Espada was the one who had truly touched the pinnacle of the Hollow.

Amidst the ruins, Akainu, who had just forcibly awakened his Devil Fruit powers fueled by extreme anger and humiliation, also felt this suffocating despair. The dark lava domain surrounding him, born from the power of awakening and seemingly capable of devouring everything, appeared somewhat... laughable in the face of this absolute "nothingness." The scorching heat, enough to turn an island into scorched earth, seemed like nothing more than an insignificant campfire in a cold universe, ready to be extinguished at any moment.

"Hmph... just being deliberately mysterious!"

The word "retreat" does not exist in Akainu's dictionary. His will has long been forged into an unyielding steel by "absolute justice," and the more desperate the situation, the more it ignites his obsessive rage.

"No matter what you become! Under the iron fist of justice, you will only end up being reduced to ashes!"

"Amaterasu·The Great Sun Burns the Sky!"

Akainu roared, unleashing all his awakened power, along with the golden divine flames originating from Lynn, without reservation!

Centered on him, the entire land instantly transformed into a pitch-black sea of ​​lava. Then, an enormous, incomparable "sun," burning with golden and black flames, rose slowly from the lava sea! It was not mere flame, but the ultimate product of the fusion of the Devil Fruit's awakened destructive laws and the concept of Amaterasu—the final manifestation of Akainu's "Absolute Justice"!