Uchiha Yu and Miwa Masayo stayed in the Cat Castle for seven days and were busy doing many things.

Nine ninja cats were rescued, seven of them mastered the fairy chakra, and although the other two completely failed in practicing fairy arts, they also got rid of the troubles of natural energy.

The most important thing is that Uchiha You used his knowledge and mobilized thousands of ninja cats to build a simple altar, which can increase the concentration of natural energy to a certain extent.

Because he did not master the knowledge of sealing techniques, the altar was made extremely large, with a huge funnel structure like the Roman Colosseum, but only the smallest area on the bottom layer was effective.

With this altar, the eight cat sages' needs for cultivation can be met on a daily basis, and it can also be used to help other ninja beasts practice immortal arts and increase the chances of ninja beasts sensing natural energy.

Miwa Masayo felt it on the altar for a while, and said unhappily, "The concentration of natural energy is still very poor, meow. Can we improve it with sealing techniques to enhance the effect, meow?"

Uchiha You shook his head: "There is no way to strengthen it. I didn't make the altar so big because I like big buildings. Now the effect of increasing the concentration has reached its maximum. The improvement of the sealing technique can only reduce the area occupied by the altar."

"In the final analysis, the environment of the Cat Castle is not good enough. I think we should consider relocation in the future. There must be places in the Ninja World with high concentrations of natural energy."

Mao You nodded and agreed, "Master You is right. The valley occupied by the giant insects is very good, but Cat Castle does not have the strength to occupy such a good place now."

"Yes, the treasure land has no owner. It is inhabited by those with virtue and strength. Maoyou, the future of Cat Castle is still long. You have to work hard."

"Meow? Are you really leaving?"

"Yes, I left Konoha Village on a mission. I have been delayed for seven days now. It is time to leave."

Uchiha You suddenly remembered something, he looked at Maoyou with a smile and said: "Miwa Masayo will go with me."

Maoyou quietly breathed a sigh of relief, but Miwa Masayo didn't hear anything and replied as a matter of course: "You are my contractor, of course I will follow you."

Without any further ado, Uchiha You said hello to Granny Cat and left with Miwa Masayo.

Because there was no suitable destination for the flame to travel to, they could only walk out of the cat castle.

The exit chosen by the tabby cat was the empty shop because it was closest to the mission location.

Walking in the long and narrow passage, Miwa Masayo suddenly said, "You, did Nekoyou see that I was playing dumb?"

"Definitely not."

"Humph, Nekoyou is such an idiot."

"He's not stupid, but he hasn't been around the most cunning humans, so how could he have so many tricks?"

"Yuu."

"Um?"

"You are my contractor, you have to speak for me, meow, but you can't say that I am too cunning, meow."

"Haha, okay."

"Let Maoyou be busy, we can go play together."

"Miwa Masayo, you are right. Immortals should be free and unfettered."

"I am willing to be busy exploring the immortal path, and I am willing to fight to protect my life, but if you want me to be busy for power, money, and fame, that is absolutely impossible!"

"You really are like our Ninja Cat, meow."

"The immortal looks like a cat? Haha, they do look a bit like it."

"Yuu, where is the mission? I can't remember, nya."

"Kawa no Kuni, Kyumori Village."

"Is the Land of Rivers far away?"

"Not far, only 600 kilometers. At our current speed, we will arrive at noon tomorrow."

"So far! Will it take so long?"

"Meow, Ninjago's endurance isn't great."

"Um?"

"Hehe, I'll take a nap first, meow."

"good."

Uchiha You rubbed Miwa Masayo, who was lying on his shoulder and hugging his neck tightly, lovingly, and said with a smile: "Go to sleep without worry, I will wake you up when we get there."

…

Uchiha You naturally wouldn't carry any heavy loads when he went out on a mission.

When operating in the wild, you can encounter enemies at any time and anywhere, and it is impossible to exhaust yourself like in Konoha Village. Even in the Cat Castle, Uchiha Yuu maintained the lowest alert, and even when helping the ninja cats to heal, he never used his full strength.

It’s not that he doesn’t trust the ninja cats, but the combat power and infrastructure of the cat castle are very poor, not enough to shelter the exhausted Uchiha You, so he can only protect himself.

[We can't relax. Even a cunning rabbit has three burrows. I haven't even managed one burrow well, so how can I relax? ]

[The Uchiha Clan of Konoha Village is my first refuge, and it is enough to protect my safety for the time being. ]

[But I have to say that the current Uchiha family is completely unsatisfactory. I need to wait for Shisui to grow up and for Uchiha Madara to die before I can make a big move.]

[There is still a lot of work to be done before it can be made into my first cave. I will be busy in the future. ]

[The cat castle is not even qualified as my second home, and it can't even keep me safe. ]

[Although my work has been completed, the ninja cats need time to grow slowly, and the construction of the cat castle also needs time to be gradually improved. ]

【Time.】

[The most important thing is the third cave. In my opinion, it is the most confidential and I need to build it alone. Now I don’t even have a direction for choosing a location.]

[You still have to go out more often and measure the entire ninja world with your own feet. 】

[Only in this way can we find a suitable location for the construction of the third cave.]

Thinking about the future, himself, and the path to immortality, Uchiha You hurried all the way towards Kyumori Village in the central part of the River Country.

The Kingdom of Rivers is sandwiched between the Kingdom of Fire and the Kingdom of Wind in the east and west, and serves as a buffer zone between the two great countries. During the two Ninja World Wars, the Kingdom of Rivers was the main battlefield where the Konoha Ninjas and the Sand Village Ninjas fought.

However, the terrain of the River Country is special. The main part of the country is composed of thousands of north-south canyons, with turbulent rapids flowing in the canyons, which are natural barriers that separate east-west transportation.

Most areas of River Country are not suitable for farming, so the population is sparse and concentrated in the north and south ends. The main battlefields of Konoha Village and Sand Village are also in the north and south ends. The vast middle section is not the center of the battle.

When the situation is already very tense, Konoha Village will accept missions from the central part of River Country, and will no longer accept missions from densely populated areas.

Because of these economically developed areas, the ninja activities in the Sand Village are already very dense, and the ninjas performing missions here may encounter hostile ninjas at any time. Any mission may become a B-level mission or even an A-level mission on the spot due to unexpected encounters, and the difficulty and risk of performing the mission are completely uncontrollable.

But after entering the Land of Rivers, in the central area where it was said that there were no Sand Ninjas, Uchiha You encountered wave after wave of Sand Ninjas who crossed the Land of Rivers horizontally, traveling back and forth between the Land of Wind and the Land of Fire.

Judging from the hurried speed of the ninjas, they should be crossing the River Country and heading to the Fire Country to carry out a mission.

Judging from the number of ninjas, the Sand Village is obviously in disarray. If it is a reconnaissance mission, so many ninjas are not needed. If it is a search mission, the number of ninjas is seriously insufficient.

The dispatch of the Sand Village ninjas was disorganized, and there must be a big problem with the management of the village. The news of the disappearance of the Third Kazekage might have spread.

Uchiha You was shocked. If these Sand Village ninjas knew that the Kazekage was missing, they would definitely be extremely anxious. When they saw him, they would definitely beat him to death without any hesitation.

In order to avoid an unnecessary battle, Uchiha You had to avoid the Sand Ninjas coming and going.

He walked and stopped frequently, so his progress naturally slowed down a lot. He had originally planned to arrive at noon, but he actually arrived at Jiusen Village late at night.