As expected of something that once drove the two branches of the Otsutsuki clan on the moon to bloody conflict, just for the sake of creating and controlling it—
The titanic Tenseigan contains an amount of Ocular Power and chakra that's terrifyingly vast, even by your current standards—like an endless ocean.
Over the past thousand years, countless pure-blooded members of the lunar Otsutsuki clan have poured their most precious essence into it.
Just by placing it within your Divine Realm, it already enhances the flow of the few existing rules there, making the spatial barriers even more stable and dense.
You even have a thought—this object might rival the God Tree Fruit, which absorbs the essence of an entire planet.
If given enough time within the Divine Realm, it might even evolve its own independent set of laws...
And beyond strengthening space, you can feel how beneficial this thing is to Otsutsuki bloodlines.
Prolonged proximity to the titanic Tenseigan allows continual purification and strengthening of the Otsutsuki bloodline.
Perhaps, this was the original intent behind the moon Otsutsuki creating the Tenseigan—to ensure their bloodline never withers, maybe even to invoke atavism.
Unfortunately, its very existence only worsened the division between the main and branch families—until it all came crashing down...
To further explore the titanic Tenseigan's potential, you scoured all the remaining texts of the lunar Otsutsuki clan.
In the end, you only found information on how it stabilizes the bloodline, and its overwhelming ability to manipulate attractive and repulsive forces.
Nothing more.
It seems you'll have to slowly unlock its secrets on your own...
...
〖Year Thirty-Eight〗
You've learned that the Sage of Six Paths has finished cultivating his fruit.
According to intel from previous simulations, once he consumes it, he'll not only reconstruct his physical body, but also gain the ability to return to the living world.
At that point, he would absolutely crush you—no contest.
You need a worthy opponent, not someone who'd squash you like a bug.
So, you strike first.
Just before the Sage of Six Paths can consume the fruit, you draw the Scythe of Death and slash open the space between the real world and the Pure Land.
Ignoring the countless wandering souls and the chilling winds of the Pure Land, you walk straight toward the Sage of Six Paths.
He clutches the fruit in his hand, eyeing you warily.
Twelve black Truth-Seeking Orbs and his staff spin around him in a defensive formation, ready to strike.
Faced with such a powerful intruder, the Sage of Six Paths doesn't immediately ask why you've come—his first instinct is to rack his mind, trying to recall if you've ever met before.
Ever since your first clash with the White Ape Sage—an event that drew his gaze—he's been puzzled by a strange sense of familiarity when it comes to you.
But no matter how hard he tries, he can't remember.
When he hears that you've come simply to spar, the tension in his posture eases a little, and he finally asks if you've ever met in the past.
For the first time, you begin to doubt the accuracy of the system's simulations.
Still, you remain calm and reply that maybe, in your youth, you had a loud and violent duel with the White Ape Sage over a clash of pride—and the noise caught his attention.
Despite your past life of abstinence, scripture-chanting, and so-called Buddhist cultivation, you'd pushed the Battle Saint Scripture to its peak. Your heart, long tempered by endless resentment and suppressed by the Sharingan, has become utterly still—like water.
Even as the Sage of Six Paths tries to peer into your thoughts using the power of the Pure Land, he can't hear a single genuine thought from your mind.
Sensing that you won't leave without a fight, the Sage decides to show you a taste of his power.
After all, he hasn't moved his body in years. Stretching a little before rebuilding his physical form might not be a bad idea.
...
The Pure Land isn't suitable for battle.
You leave it and arrive in the vacuum of space.
The Sage of Six Paths, without a physical body, can't leave the Pure Land without paying a steep price—so he projects an enormous energy avatar that reflects the cosmic space around it.
As a true Otsutsuki, even without a body, he's spent centuries in the Pure Land absorbing soul energy and mastering the power of the Rinnegan.
Even if it's just an energy construct, its strength is nothing to scoff at.
This avatar, his most powerful one, spans the length of an entire star system—godlike in scale. Even the Slug Sage, without fusing with the Dragon Vein, would struggle to overcome it.
Even a fully powered Otsutsuki Isshiki-type invader would have no impact on the true pinnacle of the ninja world.
Finally, a worthy battle.
You don't dare hold back.
You activate the fused Breathing Art of the Sage Path. Different sources of power within you erupt, then stabilize. The black Susanoo compresses tightly, becoming a near-indestructible layer of flexible armor wrapped around your body.
Battle!
In this form, your strength is enough to tear space and destroy a gaseous giant star with a single blow.
But even so, against the Sage of Six Paths' energy avatar, it's not enough.
The gap between mortal and god yawns wide. You might be able to crush god-tier enemies with ease, but the difference between you and the Sage remains vast.
Even after giving it your all—your entire body soaked in blood—you only manage to sever the avatar's arms and carve thousands of ghastly sword wounds across its surface.
And that wasn't from just one or two attacks.
You relied on a divine-level regeneration technique, sacrificing your life repeatedly to trade injuries.
Without that overpowered healing, you wouldn't have made it this far—you'd barely be surviving under his blows.
The power gap... is still too great!
After testing your base power, you decide to unleash the Battle Saint Scripture, amplifying your strength a thousandfold—and charge back in.
This time, the fight is no longer one-sided.
With your strength increased a thousand times, you can now withstand the Sage's attacks—and occasionally even force him back.
The clash is so intense that it threatens to impact both the Dragon Vein and the sun itself.
You shift the battle to the edge of the solar system.
...
In the end, even with all that strength, you're still slightly inferior to his avatar.
But the gap has been crossed.
You're now someone the Sage of Six Paths must take seriously.
Still, you're not satisfied.
You want more.
So—ignoring the Sage's repeated warnings—you forcefully activate the Eight Gates on top of the Battle Saint Scripture.
The result?
Just the blood-colored aura erupting from your body blows away the Sage's energy avatar.
Your body, monstrously durable as it is, begins to fracture inch by inch—barely held together by the divine glow of Wither and Bloom.
You suddenly jolt awake—yet you already know there's no turning back.
Then let this path be walked to the end!
Your eyes blaze with red and blue light, and you clearly see the chains shackling your body and soul.
These are the shackles that limit your growth.
There's no doubt—if you break even one of them, your strength will leap forward to a whole new level.
There's no doubt—this path is riskier than becoming a god.
But if you succeed, the road ahead is wide open.
No bottlenecks from lacking power, no relying on external tools or grinding for a thousand years.
You can't wait any longer.
Seven Heavens Breathing Technique—
Stack!
BOOM!
In that instant, your ultimate breathing technique and the three supreme ninja physical arts operate simultaneously.
You condense all your strength and spirit into a single sword—and slash through the invisible shackles that bound you!
The resulting explosion of power is so vast, it sends shockwaves tearing through the entire solar system.
You die…
〖Simulation End〗
----------------
Check out my new fanfic With the Justice System in One Piece! It has the system that so many of you love. If you're looking for something new, give it a try!
Fanfic is finished on Patreon (324 chapters in total.)
Patreon(.)com/Jixo (for only $4.50, read this entire fanfic)