"Damn it! There's no other way! Obito, fuse with me!"
Black Zetsu spoke loudly, revealing his trump card. As soon as he finished speaking, his entire body turned into a mass of black mud and merged with Obito.
Obito had already integrated a large number of White Zetsu cells into his body, causing his Yin Release Chakra to far exceed that of ordinary people, allowing him to use the power of the Mangekyo Sharingan endlessly.
But after merging with Black Zetsu, Obito, who had become a Yin-Yang Person, felt his own Yin Release Chakra surge wildly. Not only did the quantity change, but the quality improved immeasurably.
"This power... could it be the Eternal Mangekyo?"
Obito was astonished. Thinking back to what Black Zetsu and Hancock had said earlier, a thought flickered in his mind: Black Zetsu's origin seems quite unusual... However, this thought was fleeting. Obito didn't have time to dwell on Black Zetsu's flaws; all his attention was focused on himself, trying to squeeze out greater power to fight Hancock.
The Sharingan itself is an external organ stimulated by refined Yin Release Chakra. When the Sharingan advances, the user's Yin Release Chakra becomes more refined. Conversely, when the Yin Release Chakra strengthens, the power of the Sharingan naturally becomes greater.
This is similar to the relationship between Yin Release Chakra and the Sage Body; the two complement each other.
Stimulated by the powerful Yin Release Chakra, Uchiha Obito felt a strange power surging in his eyes. As the Chakra inside him erupted, a rib-shaped Chakra defense immediately formed around his body.
This was precisely the ultimate secret technique of the Mangekyo Sharingan—Susanoo!
Originally, Uchiha Obito, with only one Sharingan, should have been almost completely unable to use Susanoo—although there were examples of Uchiha Shisui activating Susanoo with a single eye, and even Uchiha Madara activating it without eyes.
But Uchiha Shisui had both eyes when he first awakened the Mangekyo, and he definitely tried Susanoo. With that experience, he could manage to activate it even with only one eye remaining.
Uchiha Madara, needless to say, was a powerhouse who had cultivated the Rinnegan. Activating Susanoo without eyes was merely commonplace for him.
Uchiha Obito, however, only ever had one Mangekyo Sharingan from the start and had never used the power of Susanoo. Naturally, even after awakening the Mangekyo, he couldn't utilize that divine power.
But now, spurred by the powerful Yin Chakra, Uchiha Obito could almost feel the mysterious power within his Mangekyo being completely unleashed. The ribcage stage of Susanoo was merely the beginning.
As the boiling Chakra surged out of Uchiha Obito's body, the Susanoo, which had only been a ribcage shape, rapidly grew taller. Amidst rumbling sounds, it shattered the ceiling of the Experimental Base. Muscles grew onto the pure Chakra ribs, forming a body, and finally, armor grew over it, transforming it into a giant several tens of meters tall.
Hancock stood at the feet of the Susanoo, quietly watching Uchiha Obito. The expression on her face showed no fear; instead, it held a touch of excitement.
"It looks like I can get a little serious now! Hmm... I won't use Chakra or Devil Fruit abilities yet. I'll just test the power of this Chakra giant!"
"Speaking of which, since leaving the One Piece World, I haven't fought a creature like a giant in a long time!"
As she spoke, a hint of battlelust appeared on Hancock's delicate and refined face. Without using any Chakra enhancement, she simply clenched her fist, and the pitch-black Armament Haki, along with Conqueror's Haki carrying faint black lightning, simultaneously wrapped around her fist.
"So strong, truly too strong! Is this the strongest power of the Uchiha Clan?!"
"I should thank you! For forcing Black Zetsu to this extent, allowing me to truly experience the divine power of the Uchiha Clan! As thanks, I will let you see..."
"Stop babbling in front of me!"
Hancock had been preparing to wait for Uchiha Obito to make the first move, but she didn't expect that due to his sudden surge in power, Obito would fall prey to the Uchiha Clan's common ailment—explaining things while laughing maniacally. Growing impatient, Hancock didn't hesitate to punch out.
With a loud boom, using no Chakra enhancement, the sheer physical strength of Hancock's body compressed the air into an air column, blasting out a pillar of light that smashed directly onto Susanoo's head.
Cracking sounds were incessant. Uchiha Obito immediately shut his mouth and activated his Mangekyo Sharingan almost to the point of exhaustion. The Yin Release Chakra power, which he originally felt was nearly infinite, was consumed by about ten percent in an instant, like flowing water.
Susanoo began to shatter under the pure physical violence, only to be restored by the massive Chakra input from Obito. This cycle of destruction and restoration made Obito understand what a cliff-like drop in Chakra felt like, and it immediately added hundreds of degrees of nearsightedness to his Mangekyo Sharingan, which had only just recovered its sight.
"Damn it, is this woman a monster?!!"
Obito couldn't help but roar in anger. Her pure physical strength was so immense that she could shatter Susanoo merely by striking the air—this completely exceeded Obito's imagination!
Fortunately, after Obito merged with Black Zetsu, not only did the quantity of Yin Release Chakra increase significantly, but his recovery ability also became extreme. The Chakra that was nearly 10% depleted in a single strike recovered within just a few breaths.
"You weren't knocked down in one hit? You're quite durable!"
A smile appeared on Hancock's face. She felt like an eight-year-old brat holding a straight stick, faced with acres of cauliflower field, already unable to suppress her eagerness.
However, after taking a punch, Uchiha Obito reacted. He no longer dared to rely on Susanoo to clash head-on with Hancock; instead, his entire body turned into a phantom and vanished into the void.
Although Uchiha Obito estimated that Hancock must also possess Space-Time Ninjutsu, otherwise she couldn't have chased him so brazenly, his greatest expertise over the years was essentially Kamui. Without this near-bug ability, Obito's strength would at most be at the level of a standard Kage.
Therefore, Obito, who had realized this, could not possibly abandon his greatest advantage, even knowing that his opponent possessed abilities that countered his own.
"Naive! You think you can escape my grasp just by carrying a spatial bubble with you?"
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