Observation Kill?
The Giant froze. The term was unfamiliar—this was the first time he'd heard it.
The entire world also paused in shock, exchanging bewildered glances.
"Observation Kill? What's that? Do you know?"
"I don't."
"Is it related to Observation Haki?"
...
Jin Mo and the others frowned, exchanging uneasy looks. None of them had heard of Observation Kill either.
Wang Quanshi speculated, "Ye Yu possesses Flowing Sakura, which represents the pinnacle of Armament Haki. So, could this Observation Kill be the peak of Observation Haki?"
Hearing this, Jin Mo and Song Ling found it plausible, feeling a twinge of envy. Flowing Sakura was the next level of Armament Haki, Dominator Infusion was the next step for Conqueror's Haki—and now, was there an advanced form of Observation Haki too? What was its primary ability?
The Giant was baffled. "What's Observation Kill?"
Ye Yu smirked coldly. "Seems you don't know. Well, you'll find out soon enough."
This put the Giant on high alert. Something about it felt ominous.
Whoosh!
Ye Yu moved abruptly. The Giant activated his Observation Haki, sensing the attack—but just as he prepared to counter from behind, he realized Ye Yu hadn't struck. Instead, the young man continued darting around at blinding speed.
"Observation Kill… is it even greater speed?" the Giant wondered, focusing intently.
Suddenly, he swung his right fist toward the right side—his Observation Haki had detected Ye Yu charging from that direction, seemingly aiming for his neck.
But when he turned and punched, his fist met empty air. The Giant's expression twisted in shock. "No? Then where is he?!"
A heartbeat later, his heart lurched violently. His Observation Haki could no longer sense Ye Yu—or rather, it had seemingly failed entirely!
The Giant's eyes darted around, trying to track Ye Yu visually, but even his sight couldn't keep up with the speed.
BAM!!
Ye Yu's fist slammed into the back of the Giant's skull, sending him stumbling forward, his head throbbing with pain and dizziness.
The Giant erupted with Observation Haki, wary now. Ye Yu flickered around again—this time, the Giant could sense him, but the feedback was delayed. One moment, Ye Yu seemed to be on the right; the next, he was already behind. By the time the Giant registered it, it was too late to react. Another punch landed.
The Giant hastily retreated, shaken.
"What's happening? My Observation Haki is being disrupted."
After a moment of shock, his expression darkened. "So this is Observation Kill? It interferes with Observation Haki?"
Ye Yu didn't respond. The demonstration spoke for itself—and soon, everyone would understand.
It wasn't surprising that no one had known about it before. After all, in the world of Pirates, only Red Hair had mastered Observation Kill so far. And its terror lay not in offensive power, but in rendering an opponent's senses useless—far more terrifying than mere blindness.
Observation Kill outright nullified Observation Haki, forcing reliance on sight alone. In the world of Pirates, Observation Haki was a fundamental, vital ability. Losing it in a high-level battle was fatal.
This was also why Red Hair had been able to one-shot Kid. It wasn't just his speed or the sheer power of Divine Departure—the key factor was Observation Kill, which rendered Kid's Observation Haki useless. By the time Kid saw Red Hair swinging Divine Departure at him, it was already too late.
Such was the might of Observation Kill.
At this moment, the Giant's expression turned grave as he realized the situation. If this were true, it would be extremely troublesome—he'd end up taking even more hits. It was nearly impossible to visually track such incredible speed. Although his size had shrunk by a hundred meters, as a Giant, his speed was inherently at a disadvantage. Now, his Observation Haki was flickering in and out of effectiveness.
Ye Yu sighed inwardly, "Right now, Observation Kill isn't at its peak yet. I can't completely nullify the target's Observation Haki for extended periods—at most, I can impair it, slowing their perception. After all, I'm only level 29. By mid-to-late stages, my Observation Kill will reach a level comparable to Red Hair's. At level 100, it will naturally surpass even his, along with longer future sight, since Observation Haki can also stack."
Meanwhile, the entire Dominant Feather Pirate Crew erupted in excitement and cheers.
"This is amazing! That Observation Kill is insane!"
"Right! Observation Haki is crucial in battle. Such terrifying Observation Kill would be a massive advantage."
"I never knew the Captain had this ability—this is the first time we're seeing it!"
"With the Giants weakened in the sea and now Observation Kill in play, the Captain has a real shot at clearing this!"
"Go, Captain!"
...
Lin Muxue's face darkened, her shock mingling with deepening regret.
"Damn it… How does he keep gaining these monstrous abilities? First the strongest Conqueror's Haki, then that terrifying Dominator Infusion and Flowing Sakura—now even Observation Kill?"
She realized this would significantly affect her. No matter how powerful her Rumble Rumble Fruit was, it meant nothing if she couldn't lock onto her opponent. This Observation Kill was a serious problem. Regret gnawed at her—why had she forced Ye Yu off the ship back then? They'd lost an overwhelming combatant.
Another slave spoke grimly, "At just level 29, his Observation Kill is already this strong. What if he can use it on a large scale later?"
The others paled at the thought. If he could unleash Observation Kill across an entire battlefield, rendering all enemies' Observation Haki useless...
A shudder ran through them. That would be devastating.
Li Cang reassured them, "Don't worry. By then, we'll have ways to counter it. After level 30, some of us might even awaken Observation Kill ourselves. I'm sure the top fighters in the Pirate King's world all have it. Once we do, we can clash Observation Kill against Observation Kill, neutralizing each other. Whoever's is stronger will overpower the other's."
Hearing this, Lin Muxue relaxed slightly, finding his reasoning sound.
She smirked coldly. "Ye Yu, thanks for showing me yet another powerful ability. I'm sure the Rumble Rumble Fruit Ability Users among the Pirates must also have Observation Kill. Once I learn it, mine will surpass yours."
...
Jin Mo and the others shared Li Cang's sentiment, believing they too would eventually master it.
However, among the Pirates, figures like Kaido and Big Mom didn't possess it—only Red Hair did at present.
They tried to console themselves, but unease lingered. The fear that Ye Yu might actually succeed weighed heavily on them.
All eyes remained fixed on the ongoing battle.
Ye Yu darted swiftly, avoiding direct clashes. After fighting this long, his stamina had taken a hit, and injuries left several parts of his body aching and numb.
The Giants panicked, flailing about in confusion as they tried to counterattack. Their senses flickered—sometimes detecting Ye Yu, sometimes failing—but more often than not, their perception slowed, severely hampering their combat effectiveness.
It was like playing League of Legends or Honor of Kings with lag—no matter how skilled you were, the delay would cripple you.
Bang! Bang! Bang!
The Giants were struck repeatedly. Occasionally, they managed to intercept Ye Yu's attacks in a clash, but gradually, their injuries worsened.
One of the Giants roared in frustration, "Damn it! You're as annoying as a fly!"
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