Here is the translation of the text from the Chinese novel:
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Full consideration given, Sage has had the fruit for only half a year. In terms of ability development, it's definitely not profound, merely constantly strengthening the physique to match the use of the ability.
But no matter how good an ability is, it serves oneself.
Sage is a master of body techniques; his strength has always been body techniques, not his abilities.
After such a long time, besides the usefulness of Hundred Times Speed, the remaining effects for Sage are merely icing on the cake, and abilities are most convenient when dealing with external objects.
Over time, Sage began to pursue the limits of ability, thereby driving the growth of his physique and the Life Return.
At this level, those who aren't top-notch experts can't discover the drawbacks; all along, Sage relied on simple ability amplification to solve them.
But against Kaido, a top expert on the seas, the drawbacks immediately became apparent.
If there are drawbacks, then they must be amended. Under the pressure of this strong force, under the strikes of these iron rods, Sage was forced to develop the fruit to a realm combined with body techniques.
Illiterates talk no physics, only idealism, and if pressured, they will rise to the challenge.
After all, people are forced to achieve.
There's no need to pursue the limits of ability, just inwardly explore the limits of oneself.
Apart from those cumbersome amplifications, it no longer requires relying on the side effects to forcibly use the fruit ability, but instead simply matches the fruit to the position Sage's body can now endure.
At the same time, this is Sage's true ability development progress.
Twenty times full amplification!
"Kaido, I'm coming!"
Sage's knee slightly crouched, the Supreme King color instantly scattered the surrounding debris, and as his body straightened, the moment he stepped out, it exploded into a deeper pit. Amidst the smoke and dust, he had already darted to Kaido's side.
"Your speed has slowed down!"
Kaido's pupils flashed red, and as Sage moved, his body twisted away. With both hands grasping the club, he raised it high, red light trailing from the corner of his eyes, fierce purple lightning swirling around the club, and vigorously swung it down.
"Thunderous Hakke!"
The downward club struck right above Sage's head.
Sage's body slightly bent, tilted outward slightly, and with both hands quickly reaching up, drew circles, swiftly striking the club.
Bang bang bang bang!
As his hands continuously struck, the power of the descending club noticeably weakened, seeming somewhat light and floating compared to its former heaviness. Under Sage's rapid hand motions, it veered past his side.
Did it miss?
No, it was neutralized!
Sage's lips curled slightly as he looked up, saying, "North Star Soft Fist!"
North Star Divine Fist's technique, a still current, a still water-like fist style. If Kaido's attack was like a raging tsunami, then Sage did not counter the wave but placed himself within and assimilated it.
In other words... neutralization!
As the club brushed past, Sage quickly moved upward, tightly clenching a fist, black flame gathering densely around it, ready to smash forth.
Whoosh!
At this moment, Kaido, having missed, instantly twisted up the club, swinging it again like a thunderbolt.
Whether by Observation's brief insight into the future or his unique reflexes, he reacted as soon as he missed, ensuring this attack would hit the kid!
But as he swung the club, the low-jumping Sage's body twisted away, a foot striking Kaido's wrist.
Bam!
The immense power first caused a momentary delay for Kaido, while the paralysis and imbalance in his wrist stopped the attack. Concurrently, Sage's fist suddenly vibrated violently, akin to high-frequency trembling, a sensation Kaido found somewhat familiar.
"North Star Water Shadow Heart..."
The fist flickering with black and red lightning heavily embedded into Kaido's chest.
"Thunderous Hakke!!"
Boom!!
Kaido's body directly embedded into the ground, gouging out a steadily advancing trench, extending to the island's edge.
Sage's body also flew sideways; the attack, though slowed, still managed to strike his body.
With a heavy thud upon landing, Sage created a circle of cracked depressions on the ground, supporting his limbs, then swiftly bounced up. Agilely, he used Moon Step to leap into the air, bending one knee while his right hand backed into his left palm, gleaming with massive black light.
"Annihilation Slash!!"
Boom!!
The gigantic black light shot across to the trench on the far island edge, blasting out a larger deep pit, causing the island to tremble, shattering the edge, letting seawater flood in, forming a small mushroom cloud.
"Hoho hahaha! Feels good, doesn't it, Kaido!" Sage bounced in the air, laughing heartily.
This is the way that suits his combat style, no longer body techniques supplementing ability, but ability supplementing body techniques!
As for Kaido's move... it has his unique exertion technique.
Having endured so many strikes, Sage saw through it.
This guy is a dragon, can manipulate thunderbolt, his Thundering Hakke, or enhanced version Thunderous Hakke, or other moves, rely on activating the body's vitality through thunderbolt, achieving instant teleportation at the moment of attack.
Even Foreseeing the Future sees it but the body still can't react; don't even mention the earlier Hundred Times Speed; even if Kizaru came it'd be uncertain.
Think his speed is slow?
Just an illusion!
Sage can't dodge his attacks, but if he can't dodge... then join!
He doesn't have thunderbolt activation, but with this stance now, he can execute minute high-frequency vibrations, which, while slower in speed, are formidable in power.
The physique strengthened by the twenty times amplification also allows imitation!
Compared to Garp's 'Fist Bone', the highly impactful move, Kaido's moves focus more on close combat and striking tangible entities.
This move...
Feels great!
Boom!
The seawater at the edge of the island had just flowed in a little when an explosion erupted, turning the seawater into a bursting spray and scattering the dust.
Kaido's massive form transformed into a dragon, spiraling up into the sky. As he twisted, bolts of thunder split the heavens, and blood continually flowed down from his chest. The Cyan Dragon grinned with a blood-stained mouth and laughed:
"Oh ho ho ho, this power is even greater than before. Clearly, you're such a small guy, has your ability changed? How fascinating!"
The earlier gigantification had weakened, yet the sense of weight wasn't false, and now this attack's power vastly exceeded the previous one!
"The sea has always been mysterious."
Sage sneered, "Frieza's final form also gets smaller, and great apes can turn humanoid. There's no reason I can't achieve it!"
The twentyfold amplification was indeed an all-encompassing amplification.
Sacrificing speed didn't matter; a hundred times speed was irrelevant to Kaido. Even the fastest speed was useless during future foresight and those teleportation-like attacks.
Additionally, using hundredfold speed required using Haki protection, which wasn't as good as now.
Twentyfold isn't as fast as a hundredfold, but it suits Sage now. All-encompassing amplification means everything is amplified, even his physique by twentyfold.
In essence, he compressed his volume by twenty times.
His usual height was about 1.9 meters, approaching 2 meters, so a twentyfold amplification meant a size approaching 40 meters, similar to Little Oars from the Summit War. Such a size compressed into his usual form was evidenced by the features resembling Haki patterns combined with black fur.
All the power, all the amplification, returned to himself.
"Giant ape?"
Kaido was momentarily stunned, his dragon eyes fixated on Sage, who occasionally bounced in the air. "Let me confirm again, if the intel is correct, you indeed ate the More-More Fruit, right? You're a Paramecia-Type ability user?"
Sage had undergone further changes from his previous form.
The lines extending from his rear shoulder to the sides of his cheeks appeared to be Haki-formed face armor, but upon closer inspection, they seemed solidified, forming black-red skin.
The areas on his shoulders extended to his arms, back, and abdomen, all wrapped in this black-red skin.
Haki hardening?
No, there was something else about it; that might be a sign of amplification, but it looked more like some kind of fur...
And this solidified coiling flame cloud, if a tail were added, anyone would say this is a Zoan-type awakening.
An ape or a monkey, they're all Human-Human Fruits...
"A Human-Human Fruit eater ate the More-More Fruit?"
Kaido squinted his dragon eyes, "Are you joyboy?"
"I'm just a pure human, damn it!"
A vein throbbed on Sage's forehead, "Doesn't a superhuman count as human?!"
Thud!
As soon as he finished speaking, smoke rings spread beneath his feet, and he soared to face the dragon's head, unleashing a 'Annihilation Slash' first.
Kaido's upper body rapidly transformed into a Dragon Man shape; the iron club spun several times, striking like a baseball to blast the pillar-thick black light into the sky with a 'Thunderous Hakke.'
As the clouds parted, the dragon's tail swayed below, twisting to the other side, dodging the continuing descent of black light, and his entire form fully transformed into a Dragon Man, thrusting the iron club upwards.
"Gundari Ryuuseigun!"
The iron club transformed into countless afterimages, assaulting every inch of space around Sage; the teleportation-like attacks blocked any escape space for Sage, leaving no dead angles.
Dodging is impossible!
Just fight!
The surging black light quickly condensed, and Sage's fist vibrated at high frequency, splitting into countless fists aimed straight at the innumerable iron club attacks. It was as if black-red thunderbolts split from them.
"Hundred Ghosts Assault Thunder!!"
Thundering Hakke, fist bone, and his North Star Hundred Split Fist!
Boom!
Upon the first clash, the fist and iron club provoked thunders to scatter. In an instant, numerous thunder lights erupted from the sky, shattering the clouds, scouring the chaotic rain, and sweeping the violent winds.
Boom boom boom boom!
Even in the air, the vibrations from this clash overwhelmed the island, shaking from the hinterland's back end to the inhabited front end. Some villages, amidst the Supreme King and Haki shock clash, saw their buildings collapse, and the land cracked open.
Amidst the continuous blows, Sage's body kept descending, gradually pressing down under the impact of fists until his body connected with Kaido's attacks.
And as the punching continued, the blows gradually slowed down.
Bang bang bang!
Numerous blows struck his body, causing it to quiver constantly, oozing blood.
Sage gritted his teeth, enduring the assault, and as he closed in, he suddenly raised one fist high.
No more countering!
Rumble!
The black-red thunderbolt struck his fist from the sky, and the Haki and Supreme King on his body poured down like a torrent, condensing onto his fist.
Witnessing this, Kaido's pupils shrank, his body quickly flickered, and just as he flashed to a distance, he rushed back, the iron club spinning wildly. He roared: "Boy! Bring it on!!"
"There's nowhere you can escape to!"
Sage glanced sideways, full of ferocity. In a flash, his body charged in front of Kaido's chest, delivering a punch.
"Azure Heaven Fist!!!"
Boom!!!
Sage's fist first struck Kaido's chest, detonating a massive explosion, a gigantic mushroom cloud rising, which then swiftly amplified, reaching for the sky.
"Daiitoku Thundering Hakke!!!"
Because Kaido's wolf fang club also struck Sage's chest, the compressed Haki and Supreme King erupted instantly, making the mushroom cloud even larger!