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Chapter 147 - Chapter 147: The Incomplete Evolution of the Tenseigan

After finalizing his preparations, Satori Hyūga entered his high-end training chamber carrying the jutsu inscriptions and a vial of Gene Completion Serum.

He had spent a fortune constructing this training chamber. Its metallic walls stood in all directions—indestructible, crafted entirely from chakra-infused metal.

Only someone as powerful as a Kage could hope to breach those walls.

Everything was now ready.

Satori began meditating on the Human Body Growth Formula, inscribing intricate markings across his body.

Intricate black incantations spread across his entire body, casting an eerie tint over his pale skin.

[Human Body Growth Formula – Activate.]

With hands forming hand seals, Satori activated the cursed markings covering his body. They surged through his flesh, bones, chakra pathways, and internal organs.

As the formula activated, his body creaked and cracked. Beneath his skin, cells within his flesh slowly started writhing.

Moments later, Satori's figure became visibly leaner, while his limbs and facial features matured significantly.

Looking closely, he shifted from a thirteen- or fourteen-year-old boy, brimming with youthful innocence, into the form of an eighteen-year-old youth.

His new appearance made him look far more mature and composed, with a tall nose bridge and clear, refined features.

His skeleton stretched out, elongating his limbs and gradually shaping his muscles—firm, defined, like carved stone.

Gazing at himself in the mirror, Satori paused at age eighteen.

"This youthful, vibrant look works. I'll lock it in for now."

Appreciating his satisfying new appearance, Satori halted the human body growth technique and took out the Gene Completion Serum.

His physical transformation was complete—it was time to finalize his genetic evolution and attempt to awaken the Tenseigan.

Taking a deep breath, Satori slowly injected the light blue serum into his bloodstream, waiting for the effects to kick in.

Minutes after the injection, his body and mind began reacting violently.

His heart pounded wildly. His body rapidly heated up, breathing turned heavy, and consciousness blurred.

Wave after wave of scorching heat surged within him, as though his soul was being seared, shattered, compressed, and reforged.

How much time passed—he couldn't tell. Eventually, Satori lay motionless on the floor, his consciousness slowly returning. His fingers twitched faintly, followed by trembling throughout his body.

He rested briefly, enduring the numb aches coursing through his body before forcing himself back to his feet.

Standing upright, a pungent, foul odor rose from his skin.

Glancing down, Satori saw a layer of grayish-red filth coating his body's surface.

[Ugh… So this is what "ninja-style bone cleansing and marrow refining" looks like?]

Forming hand seals, Satori used Water Release to condense a small water sphere around himself for a quick wash.

Once cleaned, Satori stared into the mirror at a pale-skinned youth with skin as pale as milk.

The strange skin tone reminded Satori of the Otsutsuki Clan he'd seen in his previous life.

Fortunately, only the skin color matched theirs; no bizarre abnormalities had grown on his body.

Moreover, with his genes completed, Satori felt incredibly energetic and healthy—his chakra reserves expanded once again.

Judging roughly, they had reached elite Jonin level. Chakra shortages would no longer be an issue.

Satori Hyuga reached up and touched his Byakugan, noticing faint blue specks appearing across what used to be perfectly pale, piercing eyes.

"Not quite, though I didn't fail either."

Satori kept feeling his eyes, sensing the subtle changes within.

Within their sockets, the Byakugan had started evolving after being supplemented by the Gene Completion Serum. However, completing the genes alone wasn't enough—awakening it required a massive surge of chakra.

Though Satori had ample chakra, it still fell short of fully satisfying the Byakugan's transformation into the Tenseigan.

As a result, the evolution stalled midway, leaving the Byakugan in a half-transformed state.

Satori felt confident he could forcibly awaken the Tenseigan, but doing so would drain all his chakra each time.

An incomplete transformation like this was unacceptable to him.

When it came to evolving the Byakugan, he preferred to do nothing at all rather than accept anything short of perfection.

"Hmph. Awakening the Tenseigan isn't as easy as I thought."

Though slightly resentful toward this result, Satori hadn't completely ruled it out.

Looking at the Gene Completion Project's method—comparing it with the Otsutsuki Clan's technique on the moon—his approach was clearly inferior.

They fused countless Byakugans into a single, colossal purple Tenseigan.

Alternatively, the Byakugan fused with the Otsutsuki bloodline, forming a brilliant blue Tenseigan.

Satori's method wasn't wrong per se; he simply chose a shortcut that required massive chakra stimulation to spark awakening.

After freshening up, Satori stepped out of the training chamber.

As soon as he appeared, he immediately drew everyone's attention.

Amado paused momentarily upon seeing the now-grown Satori before stepping forward respectfully. "Master Satori, how are you feeling? Should we run some tests?"

Nodding, Satori moved to the equipment and started the examination process.

Ultimately, personal feelings couldn't match the accuracy of instruments, so under Amado's help, they checked every inch thoroughly.

His body showed no abnormalities—healthier and more youthful than the average person, with fully developed and proportionally perfect bones.

Seeing those results finally eased Satori's concerns.

It seemed both the Human Body Growth Formula and Gene Completion Serum worked perfectly. Except for failing to awaken the Tenseigan, everything else was flawless.

He left the lab and entered the office.

Hyūga Yui, who sat working at her desk, along with Akabei—who was learning from her—both froze upon seeing him.

After a long pause, Yui finally tore her gaze away from Satori's striking features and fixed him with a sharp stare. "Who are you, and why are you here?"

Just as she finished speaking, she suddenly sensed something familiar. Frowning, she asked, "Why does your presence feel like Boss's?"

Satori's increased power had caused his chakra to overflow slightly, which Yui instantly detected.

Chakra stemmed from a blend of cellular energy and spiritual energy, giving every person a unique signature.

Since Yui had been close to Satori for quite some time, she'd long become familiar with his chakra signature.

Satori let out a soft chuckle. "Tell me, Yui—who do you think I am?"

Hearing the familiar voice, Hyūga Yui's eyes widened, her long lashes quivering slightly.

"Boss?"

Beside her, Akabei also stared blankly at Satori Hyūga, confusion evident in her eyes.

"Satori?"

They never expected that in just three days, Satori Hyūga would look as if he'd aged by three or four years.

He had suddenly matured, going from a boy straight to a young man. His new look wasn't bad at all—actually, it was pretty good.

Hyūga Yui and Akabei both stepped forward, reaching out with trembling hands to touch him.

Feeling the realness of his presence, a soft blush crept onto both of their cheeks.

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