"Successfully returned, energy remaining at 3%. Please replenish the energy as soon as possible, otherwise the next traversal cannot be conducted..."
Plow, familiar with the report of energy remaining, then shrunk back into its shell and didn't come out.
"I'm back."
After Uchiha Yoichi walked out of the space-time tunnel, he saw the familiar Flying Thunder God Mark on the nearby stone and knew he had returned.
This time traveling a thousand years back yielded quite a bounty, in less than a month he completely won over Kaguya, subsequently making her the sole Goddess of Mao of the Land of Ancestors by day, and pulling on the goddess's twin horns diligently by night.
After winning over Kaguya, Uchiha Yoichi slowly taught her about the life of an ordinary couple, and Kaguya gradually adapted, mainly because of the [Enchanting Demon Body] ability, which was very useful. Even Kaguya could not ignore the pleasure brought by this rule system ability.
Moreover, with an unusual blush appearing on Kaguya's normally calm face, Kaguya, who was bewildered and ignorant, couldn't reject the feelings of her body, but didn't know what was going on, and in the end could only repeatedly utter: 'Yoichi, so, so strange...'
By day she was the pure and aloof Goddess of Mao, by night she became Uchiha Yoichi's wife. Despite being clueless, Kaguya gradually followed her instincts, and eventually even took the initiative.
Often with a cold expression, Kaguya would propose to Uchiha Yoichi to perform conjugal rituals.
Facing such a cold-faced Kaguya, how could Uchiha Yoichi refuse such a request? Thus, Kaguya often made soft, cooing sounds inside the house with her robe in disarray and face flushed by day.
However, other people were not allowed to approach the shrine of the Goddess of Mao, even worship had to be done from a hundred meters away.
This was a rule set by Uchiha Yoichi, the Celestial Emperor of the Land of Ancestors.
Spending nearly a year with Kaguya a thousand years ago, the gains were considerable; the Land of Ancestors became the largest country, within less than a year, the samurai guards numbered over a thousand, with eighty thousand households contributing grain and taxes.
Given more time, Uchiha Yoichi could unify the entire Ninja World of that time.
But by then he had achieved his purpose, successfully lured out many Yin Yang Masters, and borrowed the Yin-Yang Art heritage from them.
At that time, the Land of Ancestors destroyed many countries, all the famed Yin-Yang Art heritages were borrowed by Uchiha Yoichi, including the Amahara Family who had signed a contract with Mount Myoboku.
A thousand years ago, the so-called Three Great Spirit Summoning Sacred Lands were actually just Shikigami pets of the Yin Yang Masters, among them the Amahara Family reared the toad clan of Mount Myoboku.
After acquiring most of the Yin-Yang Art heritage, and even interrogating a few Yin Yang Masters, Uchiha Yoichi made the Land of Ancestors halt its expansion, leaving the remaining few countries unattended, otherwise given another half a year, unifying the Ninja World wasn't a question.
However, the lack of news on Jigen left Uchiha Yoichi somewhat regretful, but it was so difficult to search even a thousand years later, let alone a thousand years ago.
Back then, exchanges between various regions were not so frequent, although it was known Jigen was a monk, it was too difficult to locate his whereabouts based solely on this information.
Moreover, Otsutsuki Hagoromo and Otsutsuki Hamura were also slowly growing up, and Uchiha Yoichi didn't want to disrupt history, so he planned to seal Kaguya's memory, altering it to the time just after Kaguya dispelled the Chibaku Tensei.
Only this way could ensure future events wouldn't change too drastically, albeit it meant Kaguya would be sealed again for a thousand years.
When making this decision, Uchiha Yoichi was immensely hesitant, but since this involved time travel, not a parallel world, being reckless might greatly affect things a thousand years later.
After much hesitation, Uchiha Yoichi still proposed the temporary memory seal to Kaguya.
However, upon hearing Uchiha Yoichi's request, Kaguya asked him with pure eyes: "Yoichi, is this also a part of the conjugal ritual?"
"Yes, the final step, when I return your memory, everything will be fine, by then the enemies will also be resolved."
Initially, Uchiha Yoichi was deceiving Kaguya, but now he genuinely liked this naive Kaguya, and cheating her now made him somewhat reluctant.
However, for the sake of the future, Uchiha Yoichi still sealed and slightly altered Kaguya's memory, changing it to just after Kaguya escaped from the Chibaku Tensei, telling him about that experience.
Otsutsuki Kaguya even voluntarily gave Uchiha Yoichi a black mark similar to a Wedge, allowing him to store her memories in it.
Soon after, Uchiha Yoichi, with his gains, activated Plow.
Right upon returning, Uchiha Yoichi opened the [Strategy Guide], and while Kaguya's favorability towards him originally reached 95, it now fell to just over fifty.
However, the next step indicated in the Strategy Guide was to return Kaguya's memory.
When reaching Konoha, it was already late night.
Not much time difference from when he left, just a few hours later.
Uchiha Yoichi found Otsutsuki Kaguya when she was still reading in the library, even though it was closed, if Kaguya wanted to stay there, no one could expel her.
Before the traversal, he didn't notice it, but after returning, Uchiha Yoichi felt a strong sense of familiarity, the posture of reading was very similar to Kaguya before he left.
After collecting the Yin-Yang Art in the past, Uchiha Yoichi liked to read immediately, during that time, Kaguya, having nothing much to do in the daytime, glanced at Hamura and Hagoromo, and then would come to find Uchiha Yoichi.