[Ding! Congratulations to the Master for successfully acquiring the reward: +1 Chakra!]
...
[Ding! Congratulations to the Master for successfully acquiring the reward: +1 Physique!]
...
[Ding! Congratulations to the Master for successfully acquiring the reward: Shikkotsu Forest Sage Art!]
...
Half a month flew by in no time. Each day, Mirai Uchiha would engage in sparring sessions with Hashirama Senju.
Over these past two weeks, Mirai had gained numerous benefits from Hashirama.
Among them, the greatest gain was the Sage Art of Shikkotsu Forest.
Originally, Mirai thought that the Sage Arts of Shikkotsu Forest, Mount Myoboku, and Ryuchi Cave should all be similar.
But after acquiring the Sage Art of Shikkotsu Forest, Mirai realized that these three Sage Arts were actually different.
The Sage Art of the Ryuchi Cave is the most radical one, having the greatest impact on the body.
Take Yakushi Kabuto from the original story as an example.
He nearly transformed himself into a snake-like form to freely use the Sage Art of the Ryuchi Cave.
The Sage Art of Mount Myoboku is relatively moderate, entering Sage Mode by using pre-stored Sage Chakra.
Although its duration is somewhat lacking, it doesn't cause significant harm to the body.
Even if there are slight physical transformations, the body can return to normal after exiting Sage Mode.
The characteristic of Shikkotsu Forest's Sage Art lies in being able to continuously maintain Sage Mode while absorbing and producing Sage Chakra at the same time.
Although it cannot store pre-produced Sage Chakra like Mount Myoboku does, as long as there's enough natural energy and the production speed of Sage Chakra is fast enough, one can maintain Sage Mode indefinitely.
Its impact on the human body is also minimal.
The enormous Scroll that Hashirama always carried on his back not only sealed combat ninja tools but also contained abundant natural energy.
Combined with Hashirama's incredibly powerful Sage Body, he could almost remain in Sage Mode until his supply of natural energy ran out.
In conclusion, the Sage Art inheritance of Shikkotsu Forest was the most suitable for Mirai Uchiha.
Possessing both the Senju Sage Body and Uzumaki Sage Body, along with his Natural Affinity Physique, he could absorb natural energy and produce Sage Chakra effortlessly.
In other words…
As long as there was sufficient natural energy around him, he could maintain Sage Mode continuously.
"Sage Mode!"
At this thought, Mirai felt the wild surge of natural energy rushing into his body.
Combining the chakra and spiritual power within his body, massive amounts of Sage Chakra quickly formed.
Whether due to his uniquely special Physique or not, upon entering Sage Mode, his body experienced no transformations—save for a single flame-shaped mark appearing between his brows.
Mirai clenched his fists, a slight smirk forming on his lips.
He could feel his body brimming with power, and his sensor ability had increased several-fold.
His overall combat strength had just taken a qualitative leap.
The most critical part was that once strength reached a certain level, regular ninjutsu became completely ineffective. Only Sage Arts could now cause any damage.
In other words, only those who mastered Sage Arts could truly be considered true elite fighters.
Looking at the mark between Mirai's eyebrows and sensing that familiar aura, Hashirama Senju stood agape in shock.
"Mirai, are you currently using Sage Mode?"
Mirai nodded. "That's right."
Hashirama asked in confusion, "But you've never received sage arts training—how can you use Sage Arts?"
Creating Sage Chakra or using Sage Mode were both extremely dangerous processes.
One mistake could mean death.
Even he had spent a long time learning from Katsuyu before mastering Sage Mode.
Now Mirai had managed to master it independently?
That was just too freaky!
Seeing Hashirama's shocked expression, Mirai smirked. "I guess I'm just naturally gifted."
With that, Mirai charged straight toward Hashirama. "Enough talk. Let's start today's fight!"
Mirai's figure suddenly vanished, instantly reappearing beside Hashirama.
Then, he launched a direct punch at him.
Hashirama clenched his fist as well, rushing forward to meet the attack.
Bang!
Under Tobirama's incredulous stare, half of Hashirama's body was instantly shattered by Mirai's punch.
Even Mirai himself hadn't expected such a massive boost in offensive power after entering Sage Mode.
After all, although the reincarnated Hashirama possessed less than 60% of his prime strength, he still represented the pinnacle of power in the ninja world.
Yet now, his body had been crushed by a single punch...
Such power was utterly terrifying.
[Ding! Congratulations, Master. Successfully obtained reward: Yang Release Chakra!]
Hearing the system's prompt echo in his mind, Mirai's eyes lit up.
The reward he had long desired was finally his.
A stream of extremely refined life force flowed through every limb and bone in his body.
All of a sudden, Mirai felt his body undergo tremendous changes.
Chakra, spiritual power, strength, speed...
Everything underwent a complete transformation.
After obtaining the Yang Release chakra, his Senju Sage Body, Uzumaki Sage Body, Shikotsumyaku, and natural affinity physique finally fused together completely.
[Perfect Sage Body!]
Mirai Uchiha's mind suddenly cleared with realization.
The monstrous regeneration power of the Senju Sage Body, the immense chakra reserves of the Uzumaki Sage Body, and the densely compact bone structure granted by Shikotsumyaku (Dead-Bone Pulse)...
Mirai could feel it — his physical body had now evolved into a Perfect Sage Body without any weaknesses!
Most importantly...
Mirai felt that familiar sore and burning sensation in his eyes.
Having experienced multiple eye transformations before, he knew this feeling well — another evolution was about to begin.
"That's enough for today. I'm leaving first."
After saying those words, Mirai vanished immediately.
Hashirama Senju and Tobirama Senju exchanged surprised glances.
"Tobirama, did you notice? Mirai seemed unusually excited just now," Hashirama Senju remarked.
Tobirama muttered with hesitation, "Could it be he has obtained what he wanted?"
"Who knows... Perhaps it's time we left too."
"Aniki, that's not something we can decide..."
---
In a hidden grove within Konoha, Mirai casually erected a protective barrier.
Sitting cross-legged, he closed his eyes.
Soreness, pressure, warmth... various sensations kept emerging as Mirai's ocular power surged dramatically.
Finally...
When his ocular power reached its peak, Mirai opened his eyes. The Mangekyou Sharingan patterns within his crimson irises began collapsing inward.
Rings expanded outward from the center, layering rapidly into countless concentric circles.
In the pitch-black cave, two faintly glowing lavender lights appeared.
Mesmerizing yet eerily graceful.
A faint smile appeared on his face.
The Rinnegan...
Was complete!
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