"Slowed down a lot?"
Shishou heard Hyuga Rimei's feedback and looked at her increasingly bright Byakugan eyes, lost in thought.
Then,
He said to Hyuga Rimei, "Can you try to activate that Byakugan?"
"Hmm, I'll try."
Hyuga Rimei nodded, forming a hand seal.
Byakugan, activate!
Hyuga Rimei activated her Byakugan, looked around for a while, and said:
"It feels a bit clearer and brighter than before, and the range seems to be farther as well."
"However, it feels like the chakra consumption has increased a lot."
As Hyuga Rimei continuously described her sensations, Shishou looked at the faint golden color flowing in her Byakugan and squinted his eyes.
The special Byakugan of Hyuga Rimei contained a golden color, which was originally not obvious, but now it was noticeable to the naked eye.
Does this mean that her Byakugan is transforming into the Tenseigan?
But because the Otsutsuki bloodline within Hyuga Rimei is not complete, it cannot provide sufficient Otsutsuki clan chakra, so it cannot fully activate?
Thinking about this, Shishou transplanted Hyuga Rimei's left eye back to her and removed her right eye.
This time, after drawing a certain amount of chakra, the left eye also slowed down its chakra absorption, allowing Hyuga Rimei's body to barely sustain.
Afterward, Shishou conducted several more experiments.
Then he removed and stored Hyuga Rimei's eyes.
Because after several experiments, Hyuga Rimei's chakra was almost depleted.
Even a single special Byakugan could not be maintained, and her body needed to rest for a while.
Finally,
Shishou speculated that if he wanted Hyuga Rimei to successfully awaken the Tenseigan, she needed a large amount of Otsutsuki clan chakra to supply her Byakugan.
Thus, Shishou's task was straightforward.
He needed to help Hyuga Rimei fully awaken the power of the Otsutsuki bloodline.
At that time, even if Shishou did nothing, Hyuga Rimei would be able to awaken the Tenseigan successfully.
Of course, Shishou could also devour the giant Tenseigan now to make Hyuga Rimei awaken.
But destroying one Tenseigan to gain another Tenseigan was really not worth it.
Moreover, the giant Tenseigan could forcefully draw the user's life force, which might endanger both Hyuga Rimei and his life.
So Shishou did not want to touch the giant Tenseigan until he obtained a Tenseigan.
"The experiment is over, we should proceed to the next activity."
Shishou carried the exhausted Hyuga Rimei and smiled as he walked back to her room.
Back in the room, with Shishou's help, Hyuga Rimei changed into a new set of clothes.
Feeling the light and cool outfit on her body, Hyuga Rimei's face flushed red. Although she couldn't see at the moment, she knew what kind of clothes these were.
Looking at Hyuga Rimei, whose beauty was even more striking against the white silk robe, Shishou grinned.
At this moment, Hyuga Rimei was wearing a thin, elegant robe, her curves were graceful, and her eyes were covered with a black cloth, making her cold and dignified face appear full of sacredness.
However, the blush on her exquisite face also gave her an alluring charm.
Such a strong contrast was truly irresistible.
"Shishou."
In the darkness, Hyuga Rimei stood in front of Shishou, reaching out her hands to explore, then seemed to grab something...
...
A few hours later.
Having successfully transformed the atmosphere, Shishou returned to the laboratory to start another round of experiments.
To make Hyuga Rimei awaken the Tenseigan as soon as possible, Shishou had to hurry with the Otsutsuki clan cell transplantation experiments.
This time, he needed to use cell tissue taken from Otsutsuki Toneri, conduct cell cultivation, and attempt to transplant it into White Zetsu.
"Otsutsuki Toneri had his life force drained by the giant Tenseigan, causing his cell activity to be too low. Using conventional cultivation methods cannot cultivate cells suitable for transplantation."
"If conventional methods don't work, then it seems I have to use the life force provided by the Chakra Bugs."
"However, life force is something that requires consuming animals to obtain."
"So, after all the twists and turns, it comes back to where to find suitable animals."
After some research, Shishou slumped in his chair, feeling speechless.
At this moment, all the snakes in Ryuchi Cave had hidden because last time he secretly consumed a few while accelerating Kushina's growth.
The animals on Turtle Island had also been devoured long ago, and there weren't enough animals in other parts of the Shinobi world for him to consume.
"Forget it, I'll go to Mist Port to buy a few boatloads of fish and go through the experiment process once."
Muttering to himself, Shishou disappeared from his spot.
Not long after, he returned to the laboratory.
With the feedback from the Chakra Bugs, Otsutsuki Toneri's cells quickly cultivated to a suitable scale for transplantation.
Toneri's cells were similar to Uchiha Madara's, without such strong aggressiveness, making the transplantation relatively simple compared to Hashirama's cells.
However, because Otsutsuki Toneri's cells didn't possess the same aggressive properties as Hashirama's cells, they couldn't autonomously erode host cells, absorb the host's life energy, and reproduce themselves.
Therefore, cultivating them was very troublesome.
In contrast, Hashirama's cells, once transplanted into White Zetsu, could reproduce themselves extensively.
At the same time, although Otsutsuki Toneri's cells had low activity, they could contain a vast amount of energy.
To cultivate them and make them proliferate, a huge amount of energy and life force was required.
Just like now, Shishou had consumed several large shiploads of fish, yet he could only cultivate one batch of Otsutsuki cells suitable for transplantation into White Zetsu.
Of course, the more energy Otsutsuki's cells consumed, the more chakra they would have after awakening, which would be advantageous for Shishou.
Crunch!
White Zetsu, who had been transplanted with Otsutsuki cells, began to undergo mitosis, rapidly proliferating into thirty-two clones.
After devouring all these White Zetsu, Shishou used the Flying Thunder God technique to return to Hyuga Rimei's side, placing his hand on her sleeping forehead.
With the continuous feedback from the Chakra Bugs, the Otsutsuki bloodline within Hyuga Rimei increased steadily, and her chakra volume surged.
Surrounded by warmth, Hyuga Rimei woke up and grabbed Shishou's arm.
"Sorry to wake you." Seeing Hyuga Rimei awake, Shishou smiled and held her hand.
Feeling the warm energy constantly filling her body, Hyuga Rimei, with her eyes covered, shook her head, exploring with her hands until they reached Shishou's face.
She measured and stroked his face with her hands, as if to imprint Shishou's face in her heart.
When Shishou's feedback from the Chakra Bugs was complete, Hyuga Rimei used her hands to push him down, placing her face against his chest, and said with a smile:
"Shishou, I want you to hold me to sleep."
"Okay."
"And don't poke me with anything..."
"..."
**********
This fanfiction is complete on my Patreon. If you want to read it, you can find it at patreon.com/Betek.