Awakening the Tenseigan!

If you want to read up to 20 chapters ahead, you can check out my paterón:

https://www.patreón.com/Bakorio

The link is also in the synopsis

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After Hagoromo and Hamura were also revived thanks to Kaguya using her unhuman regenerative capabilities which were something she gained from absorbing the chakra fruit as well as the help of his Chakra recovery pill. Bakorio tried his best to help her and her two sons reconcile their differences, but in the end, the atmosphere between them was simply too awkward to fix in one try…

'At least they aren't hostile to each other anymore' thought Bakorio before he shifted his focus to the energy Hamura and the puppets seemed to be able to manipulate and he couldn't help but ask him curiously "Hamura, what's this energy I feel on the moon, and why does it resemble the Byakugan?"

Hamura shot his mother a calm look which she pretended not to see before he turned to Bakorio and said "Just as my brother inherited the Sharingan from my mother, I on the other hand inherited the Byakugan"

Bakorio nodded at this since he knew this much, but Hamura's next words shocked him slightly "What many people in the world do not know, including the Hyuga clan on earth is that the Byakugan, just like the Sharingan can also evolve and become a stronger Dojutsu"

Seeing the shock in Bakorio's eyes, Hamura and Hagoromo were glad that this brat in front of them wasn't an all-knowing being and he continued speaking in a relaxed manner

"The Sharingan's ultimate evolution is the Rinnegan, to Unlock this Dojutsu, many conditions need to be met, but it mainly revolves around having the purest bloodline that Hagoromo inherited which later split between his sons Indra and Asura…

In the case of the Byakugan however, its ultimate evolution is called the Tenseigan, and to unlock it you will need the purest bloodline that I inherited from our mother which consists of the Hyuga clan on earth and the Otsutsuki clan that I left on the moon"

When Hamura finished saying this, he directly activated the Tenseigan he spoke about and his normal Byakugan instantly transformed and become blue like two beautiful gems! Then, he demonstrated its ability and was instantly covered in a green chakra clock and had truth-seeking balls revolving around his body and it reminded Bakorio of Naruto's chakra mode when he gained Hagoromo's six path chakra…

"Is this the reason you were able to fight alongside Hagoromo to seal Kaguya?" Asked Bakorio curiously as his hands itched for the possibility of him gaining these eyes as well and growing stronger!

Hamura nodded at his question and said "Yes, both Hagoromo and I master six path chakra, then he used his Rinnegan while I used my Tenseigan which made us barely able to keep up with our mother"

Bakorio shot Kaguya a look, and he was mainly staring at her normal Byakugan and asked "Can you also use the Tenseigan?" Kaguya nodded silently at his inquiry which surprised Hagoromo and Hamura as they both asked at the same time "Why didn't you use it during our fight back then?"

Kaguya simply shook her head at this question before she said "I couldn't… I sacrificed my ability to use the Tenseigan back then to deal with the other Otsutsuki member that came to this world with me, although I recovered it thanks to Bakorio's chakra pill…"

Hagoromo and Hamura shivered slightly at the thought of fighting a Kaguya that can also use the Tenseigan and they couldn't help but shoot Bakorio a look and ask him directly "Just who in the hell are you? How do you know so many things about us and the world? And how were you able to show those scenes of you fighting those monsters when clearly they didn't happen? Can you see the future?"

So many questions and doubts were expressed by them, and Bakorio didn't blame them for them since his ability to experience the future and knowledge of the original story were two terrifying cheats that were incredibly hard to comprehend for those who lived in this world, so he thought about it silently before he said

"I have a very strong ability that allows me to see the future, and sometimes even the past, but I can't explain to you how it works"

Hearing that their guess was correct, Hamura and Hagoromo stared at Bakorio in admiration although they still had some doubts, but they didn't want to pry too much on another person's secrets…

"Back to our original topic, what's that energy?" Asked Bakorio trying to get the conversation back on track and Hamura smiled awkwardly and continued his explanation

"Ahum, well, this energy you sense is actually something I prepared before I died called the energy vessel, I used my own Tenseigan as a core for a formation and made a ritual for my descendants here on the moon to sacrifice their eyes to it.

This made it accumulate the unique energy that the Tenseigan could generate to the terrifying degree that you see right now after more than 1000 years… Of course, this was in case our mo-mother ever escaped from her seal and to give the people of this world a chance to fight her…"

"Well, this makes sense, at least your preparations were better than Hagoromo's who wrote a few words on a stone that Zetsu easily tinkered with and caused his descendants to fight among themselves pointlessly for centuries…" Replied Bakorio with a shrug which earned him a glare from Hagoromo which then shifted into Zetsu who instantly hid into Kaguya's wide sleeve…

"Sorry about that" Apologized Kaguya in Zetsu's place since he was simply following her orders which left Hagoromo speechless and he didn't know what to say so Hamura intervened and said with a sigh "Unfortunately, my plan as well seems to have backfired and I ended up having only one descendant left here on the moon which clearly had some ill intentions toward earth…"

Bakorio nodded at this and shifted his focus to the castle where Toneri was held against his will by the puppets and said "Let's go to this energy vessel, I want to try something"

"This won't help you evolve your Mangekyo Sharingan into the Rinnegan so this is going to be quite useless for you…" Spoke Hagoromo trying to appear wise, but Bakorio simply smirked at him and said "Who said I wanted to evolve my Mangekyo Sharingan?"

Then to everyone's shock, the blood red color and the three tomoe on Bakorio eyes slowly faded away, but his eyes didn't turn back to the usual pitch-black color of the Uchiha clan, instead, they became completely white and pupilless just like the Hyuga which left everyone speechless as Bakorio said "I want to evolve this"

….

The location of the energy vessel was near the castle where Toneri resided, and he was currently pacing back and forth thinking about what he just witnessed…. "What should I do?" He wondered, but thanks to his great senses that allowed him to even observe people on earth all the way from the moon, he felt the few terrifying presences approaching him and among them was his ancestor which both delighted him and scared him since he misunderstood his teachings and almost caused a catastrophe…

However, against his worries, Bakorio and the rest directly ignored him and continued their way toward the location of the energy vessel, although Toneri noticed that the puppets were not holding him back from leaving anymore so he decided to follow them and see what they wanted to do!

However, once he arrived there, he simply witnessed the scene of Bakorio eyes absorbing the energy from the huge yellow eye-like energy vessel, and his Byakugan slowly transformed from their pupilless form to a blue gem-like state similar to what Hamura showed earlier, and the latter couldn't help but exclaim "Impossible, what kind of magic is this?"

He was sure that Bakorio didn't have the full bloodline needed to trigger the evolution of his Byakugan… However, what he didn't know is that Bakorio had a broken system, and everything was possible through it…