Because of her eye condition, she nearly fainted in the Hokage Building, so she was sent to the hospital.
"Teacher Yoichi, you're here~"
Upon seeing Uchiha Yoichi, Hyuga Satomi immediately showed a sweet smile, asking joyfully, "Did enemies invade the village last night?"
Uchiha Yoichi said, "Yes, it's been taken care of. Satomi, how are your eyes?"
"Very good, Teacher Yoichi, I've never felt this good!"
After Satomi said this, she smiled and took off the bandages wrapped around her eyes, revealing a pair of sky-blue eyes.
After doing this, Hyuga Satomi looked at her hands, then stepped off the hospital bed and continued talking to Uchiha Yoichi, "Teacher Yoichi, I feel like my body is fine now, and I've mastered many pupil techniques. I wonder if it's my eyes..."
"Your eyes have evolved very well; now they're Tenseigan, Satomi!"
Uchiha Yoichi carefully observed Hyuga Satomi's Tenseigan. Awakening the Tenseigan is much easier than the Rinnegan, and the Tenseigan's power is significant. Although it doesn't have as many abilities as the Rinnegan, it amplifies destructive capability to the extreme.
The evolution time was shorter than Otsutsuki; perhaps it's due to Satomi's Byakugan purity being low and the recent removal of the Caged Bird.
Luckily, it successfully evolved into Tenseigan.
"Go outside and test the pupil techniques you've gained, Satomi."
As he finished speaking, Uchiha Yoichi saw Hyuga Satomi nod in agreement and used the Flying Thunder God Jutsu to take her outside the village.
Arriving at a wide-open, deserted forest, Uchiha Yoichi spoke, "Satomi, showcase the pupil techniques you've acquired."
"Okay, Teacher Yoichi."
Even though she was in a hospital gown now, Hyuga Satomi still stood straight and said.
Then she performed a double-handed seal, rapidly gathering chakra. Moments later, Hyuga Satomi's aura intensified, with green chakra enveloping her body, eventually turning into a light green chakra armor adorned with Tamoe.
Behind her hovered three Truth-Seeking Orbs, her aura seeming ten times stronger than before, now feeling more powerful than Hatake Sakumo and Senju Tobirama.
"Teacher Yoichi, this is the Tenseigan Chakra Mode, though the chakra is too little to use many pupil techniques."
After Satomi said this, she raised her hand toward the empty forest.
The three Truth-Seeking Orbs floated in her hand, quickly spinning into a light green orb, followed by Satomi's delicate shout, "Silver Wheel Rebirth Burst!"
A raging, terrifying tornado was released from Satomi's hand, instantly like a natural disaster, destroying several kilometers of forest.
After a few minutes, the tornado finally ceased, and where the Silver Wheel Rebirth Burst passed, even the hard ground was torn into several meters deep craters.
"That's one of the pupil techniques; there's another stronger one, but I've run out of chakra."
Satomi ended the Tenseigan Chakra Mode, slightly panting, saying; before when not using the Sage Curse Seal, she was between Jonin and Elite Jonin, after using the Sage Curse Seal she could stabilize at the Elite Jonin rank.
In just a few days, she gained the Tenseigan. Though her eyes evolved, her chakra amount didn't increase, requiring a gradual evolution process.
"However, my chakra has started increasing again recently, and soon I'll be able to fight using Tenseigan, Teacher Yoichi."
Satomi leaned beside Uchiha Yoichi, tilting her head.
The Tenseigan seemed to unlock her chakra limit. Originally, Elite Jonin was Satomi's limit, but after unlocking the Tenseigan, her limit has more than doubled tenfold.
"Satomi, maybe your help in the future will be essential, and the Tenseigan platform in the village will also be under your control."
"I understand, Teacher Yoichi, if there's a need, I'll rush over."
Satomi nodded, followed by a light brow furrow as she continued, "Teacher Yoichi, I've received word... it seems the Main Family isn't content, they might stir up trouble..."
"Leave that matter to you, I have other things to do."
Uchiha Yoichi habitually delegated matters, saying; moreover, Satomi can fully handle it now, her power reaching Kage Level, activating the Tenseigan and using his chakra, surpassing Kage Level force can be unleashed.
No longer having the Caged Bird Curse Seal, coupled with the inheritance from Otsutsuki Hamura, dealing with a few Hyuga Main Family members is a breeze.
After sending Satomi back, Uchiha Yoichi went to his Alchemy Room; having dealt with Otsutsuki Urashiki yesterday, he'll probably be busy for some time.
Urashiki's eyes haven't been handled by Uchiha Yoichi yet, the ability is strong; however, his second clone desires Tenseigan more.
The Kamui Mangekyo can't be discarded; creating a third clone would be excessive.
Regarding others, the first person Uchiha Yoichi thought of was Tsunade, although he's unsure if Tsunade would accept another's eyes, let alone eyes based on Byakugan turning into Rinnegan.
Apart from Rinnegan, the greatest gain Uchiha Yoichi had was the treasure tool Plow from Otsutsuki Urashiki.
After becoming Hokage, he searched for this treasure tool in the village but couldn't find it, suspecting it might be collected by Konoha later, deciding to give up.
Unexpectedly, the treasure tool was sent to him by Otsutsuki Urashiki, in which Uchiha Yoichi should truly thank him.
"Plow, can you perform time-space travel now?"
"Insufficient energy, with the current replenishment speed, half a month is required... Oh oh oh, now the energy is sufficient!"
While Plow, the turtle spoke, Uchiha Yoichi directly infused it with his chakra, rapidly replenishing the chakra needed for Plow's time-space travel.
"I am Otsutsuki's treasure tool Plow, with the ability to take people through time-space, additionally, take care not to travel to a time and space related to yourself in the past..."
The turtle shared some precautions regarding time-space travel.
Upon hearing, Uchiha Yoichi asked, "Can it only travel to the past? Can't travel to the future?"
"The future is uncertain; to travel, at least five times the current energy is required, and the traveled future lacks reference."
Uchiha Yoichi continued asking: "I'm now practically undying, but if I travel to a time-space where I don't exist, is this parallel space, or a time-space where I died unexpectedly?"
"......"
The turtle-like treasure tool stalled, Uchiha Yoichi waited a bit seeing Plow not answering, choosing to give up asking deeper questions.
This fellow may have some intelligence but in the end is just a treasure tool; perhaps only the maker can understand these questions.
However, time-space travel made Uchiha Yoichi further comprehend the strength of the Otsutsuki Race; despite multiple evolutions, he never gained space-time abilities, while Otsutsuki Race could already craft time-traveling treasure tools.
"Should the travel occur now?"
"No need, rest first, I'll awaken you when needed."
Letting Plow enter sleep mode, Uchiha Yoichi then stored it away.
Traveling to the past seemed pointless; despite Plow stating altering past would influence the present, Uchiha Yoichi felt skeptical.
He's already powerful; would past change lead to his demise or disappearance?
Time-space travel being this intriguing, of course, Uchiha Yoichi intends to try it, but for now the Ninja World isn't exactly peaceful, with four nations united against Konoha, and secretly an Uchiha Madara.
Once resolving all of them, Uchiha Yoichi plans to attempt time-space travel, exploring both past and future.
Twenty years later, the Shell Organization began researching the corpse of the God of Otsutsuki, that can independently ascend dimensions—Uchiha Yoichi is greatly intrigued!