The regret was short-lived, and Sato moved on from it.
With the physique of a celestial being, he lacked everything except Chakra.
His strength was such that summoning the corpse of Nirvana Sharigan's space to fight for him was unnecessary.
His Wood Clone possessed considerable power.
The most useful technique for Sato was the Nirvana Sharingan, specifically the right eye. It endowed him with capriciousness and arrogance.
Thus, Sato named his left eye "Nirvana Sharigan · Resurrection of the Dead" and his right eye "Nirvana Sharigan...Nirvana Sharigan · Grafting of Death."
After learning about Nirvana Sharigan's ability to resurrect the dead, Sato's nine-year continuous improvement of his plan was finally complete.
Sato's current strength had transformed from that of a small carp to that of a mighty dragon, capable of stirring the winds and clouds.
Feeling at ease, Sato had no interest in going to the Nirvana space to see the tombstones after devouring the last few Uchiha corpses.
He collected the dismantled scrolls and put them back in his backpack before leaving the wooden house.
"Fire Style · Fire Dragon Technique!" Sato formed a hand seal, summoning a massive fire dragon that engulfed the wooden house. Then he headed towards the main street.
As the main body left, the four Wood Clones dispersed in different directions, blending perfectly with the surrounding forest.
By the time Sato returned, dusk had already arrived.
Karin was already preparing dinner at home.
After having dinner with Karin, Sato smiled and suggested, "Karin, I'm in a good mood today. Let's go out and visit the night market together."
Karin squinted her beautiful eyes happily and nodded enthusiastically.
Her happiness stemmed not from going to the night market with Sato but from his own happiness.
Seeing that Karin didn't inquire about his actions, Sato nodded in satisfaction.
It seemed that she had been trained to be the perfect companion, and it was time to help her change her fate.
Sato took Karin out of the house and proposed, "By the way, Karin, since you and your mother are from the Uzumaki clan, why not add Uzumaki as your surname? It might make your review process when joining Konoha easier."
"I'll listen to you, Sato," Karin replied without hesitation upon hearing that it could ease the review process.
Sato rewarded her with a pat on the head, which was one of the three rewards he regularly gave her.
The other two rewards were giving Sato massages and allowing him to watch her change.
Unbeknownst to her, Sato was secretly using his perception to locate Tsunade and Jiraiya.
Orochimaru had come during the day, and Jiraiya and Naruto were expected to arrive at night.
Sato felt a tremendous change in his Yin Chakra after devouring dozens of Uchiha. It had become stronger, allowing him to perceive an astonishing range without hand seals, similar to the Second Hokage.
Soon, Sato sensed three robust Chakra signatures in a specific location on the nearby street.
One of them belonged to Naruto, as his Chakra was exceptionally potent.
The other two Chakra signatures belonged to Tsunade and Jiraiya.
Accompanied by Karin, Sato leisurely approached the three Chakra signatures while visiting the night market.
"Woo... Naruto?" Sato and Karin passed by the door of a tavern where three Chakra signatures were located.
With superb acting skills, Sato suddenly pulled Karin back to the door, gazing at Naruto sitting in front of the bar and looking angrily at Tsunade.
"Eh?" Startled by someone calling his name, Naruto turned to look.
Seeing Sato, Naruto widened his blue eyes and jumped off the stool in astonishment. "Sa... Sato, why are you here?"
Jiraiya, Tsunade, and Shizune, who had been reminiscing, also turned their attention to Sato upon hearing Naruto's reaction.
Unlike Naruto and Shizune, who only noticed Sato, Jiraiya and Tsunade immediately recognized Sato and Karin.
Especially Tsunade, whose flushed cheeks sobered up when she saw Sato's silver hair and the red-haired figure beside him.
In her blurred vision, she faintly saw the reflections of her second grandfather Senju Tobirama and her grandmother Uzumaki Mito behind them.
Tsunade glanced at Jiraiya next to her, who wore a wide grin and seemed to have discovered something.
Naruto, puzzled by their reactions, looked at himself and then at Karin, seeking an explanation.
"It's nothing," Karin shook her head and introduced herself with a smile. "My name is Karin Uzumaki. Please give me your advice."
Almost instantly, Tsunade put down her wine glass with force, stood up, and walked towards Karin, catching her attention.
But before Karin could observe Tsunade closely, a robust figure blocked her view.
Strong arms enveloped her and pulled her into a tight embrace.
At first glance, it seemed as if Tsunade had discovered a relative from her clan and was overjoyed.
However, Sato sensed Chakra flashing through Tsunade's hands as she embraced Karin, evidently checking her physical attributes.
Within seconds, Tsunade, still hugging Karin, displayed a blissful smile.
Clearly, she had confirmed Karin's identity in a matter of seconds.
Uzumaki... no mistake!
Observing this, Sato also revealed a triumphant smile within.
Excellent, Karin's connection has been successfully established.
Now, it's time to prepare and shed the "civilian" label, donning the "Senju" vest, and revealing the trump card before Tsunade.
And that trump card is none other than... Wood release!