After absorbing the Skill Orb into his body, Kawaki Aoba mastered the ability it contained in an instant.
High-level Kido, Hado #90: Black Coffin.
When activated, Black Coffin formed a massive cube resembling a black coffin, trapping the target inside to endure the punishment of a thousand swords and ten thousand blades.
As a high-level Kido, Black Coffin had a very high damage ceiling. In Aizen's hands, even when cast without an incantation and at less than a third of its full power, it could still instantly kill a Captain-level Shinigami.
In the Shinobi World, with the right opportunity, it might not easily take down someone on the level of the Five Kage, but it would certainly be enough to deal with an ordinary Jonin.
Of course, Black Coffin's damage came at the cost of enormous energy consumption.
In the Shinigami world, anyone wishing to cast a high-level Kido like Black Coffin needed Reiatsu at least on the level of a Captain or Lieutenant.
And now that it was in Kawaki Aoba's hands in the Shinobi World, the only way he could cast Black Coffin was by cheating.
After fully digesting the Black Coffin ability, Kawaki Aoba suddenly felt grateful to his Teacher Shinku.
If Teacher Shinku hadn't just developed the Chakra Cloak, Kawaki Aoba wouldn't have been able to use a skill like Black Coffin anytime soon.
Even the Big Blue Potion wouldn't have been enough. No matter how terrifying its Chakra recovery was, there was still a limit to the amount of Chakra Kawaki Aoba's body could hold, and he couldn't make use of the Chakra that dispersed into the air.
But with the Chakra Cloak as an external battery, he could store that easily dispersed Chakra. Then he'd have the energy needed to cast Black Coffin, wouldn't he?
So, Teacher Shinku was the GOAT.
Suppressing his excitement, Kawaki Aoba decided to hurry up and sacrifice the Gentle Fist sponsored by the Hyuga Clan. After that, he'd go straight to Teacher Shinku and learn the Chakra Cloak.
By then, his maximum damage output would absolutely reach the ceiling of the Shinobi World at this point in time.
He wouldn't have to worry about the coming Third Shinobi World War, or the threat from the Hyuga family. Absolute strength would be enough to crush any schemes they came up with.
With excitement in his heart, Kawaki Aoba placed the Gentle Fist manual from his memory onto the Sacrificial Altar in the form of a Memory Orb.
Soon, the Sacrificial Altar began to glow. The sacrifice had begun.
The light faded, and the sacrifice was over.
Just as when he had sacrificed something and obtained Black Coffin, the reward this time was also a Skill Orb.
This one, however, was pale blue, with what seemed to be streams of water flowing irregularly inside it.
"Huh?" Kawaki Aoba exclaimed in surprise, utterly astonished. He'd had little hope from the start, but the Gentle Fist manual had actually yielded something.
At first, Kawaki Aoba hadn't thought the Gentle Fist manual could yield anything good. It wasn't that he had any prejudice against Gentle Fist.
It was simply that the Hyuga Clan was too stingy. Even when plotting against him, they hadn't given him a complete manual.
Advanced applications of Gentle Fist like Eight Trigrams Vacuum Palm and Eight Trigrams Palms Revolving Heaven weren't even mentioned in the manual.
Now that it had yielded a Skill Orb that looked pretty good, how could Kawaki Aoba not be surprised by his luck?
Kawaki Aoba didn't hesitate and immediately absorbed the blue Skill Orb into his body.
Once the skill had merged with him, a wealth of new techniques and insights about the fighting style filled Kawaki Aoba's mind.
"Water Stream Rock Smashing Fist," Kawaki Aoba said, naming his newly acquired fighting style.
It was the signature technique of Silver Fang Bang, the third-ranked S-Class hero from One-Punch Man.
There was no need to say much about the power of this fighting style. Once mastered, it could presumably take down a Kage Level ninja.
Even now, it gave Kawaki Aoba's personal combat strength a significant boost.
With this fighting style, Kawaki Aoba was confident he could face a Chunin even without taking medicine. With his cheat activated, combining it with Shave and Finger Pistol from the Six Powers would only make it stronger.
It was worth noting that Water Stream Rock Smashing Fist was quite adaptable. And because of its own characteristics, even changing moves abruptly in the middle of a fight wouldn't damage his body the way the Six Powers could.
Aside from all that, what Kawaki Aoba valued most about Water Stream Rock Smashing Fist was the way it could strengthen his physique as a fist-fighting style.
In that regard alone, it was far beyond any Strong Fist or Gentle Fist school in the Shinobi World.
However, there were a few minor flaws in the Water Stream Rock Smashing Fist Kawaki Aoba had obtained.
Perhaps because the Gentle Fist manual he'd sacrificed was incomplete, his version of Water Stream Rock Smashing Fist didn't include the later techniques, the powerful Exploding Heart Release Fist and Cross Fang Dragon Slayer Fist.
Although both of those ultimate moves were combinations of Water Stream Rock Smashing Fist and Whirlwind Iron Cutting Fist, what Kawaki Aoba valued most was the way the two fighting styles worked together.
If he could understand the principles behind their combined attacks...
Having such thoughts could only mean Kawaki Aoba was being a little greedy.
But this was how any normal person would react.
With that tiny bit of regret, Kawaki Aoba left home and headed straight for the Yuhi Residence.
What could be better than acquiring two ultimate techniques? Acquiring three.
As for the Hyuga family's observer following him, Kawaki Aoba wasn't worried in the slightest that the man would discover the secret of his potion.
The Yuhi Residence wasn't as secluded as his own home. In fact, it could be considered the heart of the civilian residential district.
Kawaki Aoba knew at least seven or eight Jonin lived on that street.
If a Hyuga ninja dared to activate his Byakugan there, the consequences... Tsk, tsk, tsk.
"Aoba, you're just in time. I was just thinking of having Kurenai call you over."
At the Yuhi Residence, Yuhi Shinku looked delighted and excited when he saw Kawaki Aoba.
Presumably, after finishing the Chakra Cloak, Yuhi Shinku couldn't wait to show off to his student and prove that he, the teacher, had plenty of talent too.
After all, having a prodigious student like Kawaki Aoba, whose talent for developing ninjutsu and taijutsu was monstrous, put a lot of pressure on Yuhi Shinku.
Since Kawaki Aoba had come to ask Teacher Shinku for guidance in the first place, he naturally didn't spoil the moment. Instead, he played the perfect straight man.
"Teacher Shinku, you look so happy. Did something good happen?"
Kawaki Aoba's words hit Yuhi Shinku right where he was most excited.
With a smug look, he smiled and said, "Something good did happen. Aoba, do you remember the technique you mentioned a few days ago? The one that could put the Chakra dispersed after drinking the potion back to use."
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