In Konoha: Eating Goro Goro no Mi at start.

"Okay, you two are busy, I won't bother you anymore."

Hiruko handed over a cage with several monkeys and said to Rei and Tsunade.

"Hmm? Do you still need to do this kind of thing yourself?"

Rei chuckled and took the cage handed over by Hiruko and joked.

" It's hard for me to protect the village like you two, so I just do what I can."

Hiruko laughed at himself and said a little embarrassedly.

"Too modest, I look forward to your early development of the Chimera technique."

Rei chuckled and nodded, and said to Hiruko.

From Rei's point of view, Hiruko is still a complicated person now.

On the one hand, he seems confident because of the appreciation of Senju Tobirama.

On the other hand, he feels inferior because he has no qualifications.

That's why he looks so inconsistent.

"Thank you." Hiruko nodded and turned away.

After saying goodbye to Hiruko, Rei put the monkey to the experimental table.

Tsunade crossed her arms and looked at Rei who was guiding nature energy with a finger on the monkey's lower abdomen, and a slight smile appeared on the corner of her mouth.

"Alas..."

Looking at the monkey that turned into a stone statue under her hands, Rei sighed helplessly.

Some things are really easy to think about but difficult to do...

Rei thought about many points of failure, but he didn't expect to fail at just the first step...

Seeing this, Tsunade pursed her lips and came to Rei's side.

"Don't worry, take your time."

As she said that, Tsunade kissed Rei's face.

At present, only Rei can do this job. After all, in terms of control over nature chakra, Rei is far better than herself.

So, now Tsunade can only comfort Rei.

Rei, smiled and shook his head.

"This experiment can only be put on hold for now. We still need to further improve our control over nature energy."

"Well, let's start practicing. I can analyze the differences between monkeys and humans first." Tsunade nodded and said to Rei.

Although the genetic similarity between monkeys and humans can reach an astonishing 93%, humans are humans, and monkeys are monkeys after all.

And the 7% of the difference still requires Tsunade, who specializes in medical treatment, to distinguish.

"Thank you for your hard work." Rei chuckled and said to Tsunade.

  ...

 Hiruzen appeared at the third training ground of Konoha .

"Is there a mission?" Orochimaru stopped practicing and asked Sarutobi Hiruzen.

"What level of mission?" Jiraiya asked Sarutobi Hiruzen with excitement.

Jiraiya now wanted to use a difficult mission to prove his efforts in the past three years.

"S-level." Hiruzen chuckled and said to the two disciples in front of him.

"Are Rei and Tsunade coming with us?" Orochimaru asked Hiruzen.

"no, they are developing sage arts." Hiruzen raised his eyebrows and said to Orochimaru.

"What? I can also do senjutsu, okay? I think I should help Rei and the others develop senjutsu together!"

Jiraiya said loudly upon hearing this. Jiraiya also clearly felt that the mission that Rei and Tsunade were carrying out was more important than the mission that he and Orochimaru were about to perform.

"When you enter the sage mode and don't need the help of the sages of Mount Myoboku, I may be able to recommend you to Rei and the others' laboratory."

Hiruzen said lightly upon hearing this, but just this one sentence made Jiraiya shut up completely.

"What is the specific mission?"

Orochimaru nodded upon hearing this and asked Hiruzen.

"Guard mission, the target is the witch of the Land of Demons."

Sarutobi Hiruzen said to Orochimaru upon hearing this.

"Okay."

Orochimaru nodded upon hearing this, indicating that he understood.

"Well, gather here at six o'clock evening. The target is the Land of Demons."

Hiruzen put away the smile on his face and said seriously to Orochimaru and Jiraiya.

Although his team looks like a combination of jonin, chunin and genin, in fact, both Orochimaru and Jiraiya are no weaker than the average Jonin.

The only difference between them and the jonin may be the control of the situation and the deployment of tactics.

And this is also one of the necessary links to train elite ninjas.

  ...

"Have you found the direction of the breakthrough?"

Senju Tobirama appeared in the laboratory and asked Rei who was practicing and Tsunade who was dissecting a monkey.

"The current direction is probably to use nature energy to cultivate a monkey similar to the White Snake Sage, and then record the process, and then adjust it according to the differences between humans and monkeys."

Rei dispersed the nature energy in his hand and said to Senju Tobirama.

"Currently, Tsunade is analyzing the differences between humans and monkeys."

"Will the loss of control of nature energy turn the monkey into a stone statue?"

Senju Tobirama glanced at the lifelike stone monkey in the corner and placed the food made by Mito on the table where the data was recorded.

"Well, if too much nature energy is introduced into the body, it will become like this."

Rei nodded and said to Senju Tobirama.

" It may be hard for you two during this period, but if you find the direction, I suggest that you can use the shadow clone to conduct experiments here, and don't fall behind in your own practice."

Senju Tobirama nodded and said to Rei.

Experiments are important, but strong people are equally important.

"yeah."

Rei nodded.   

"Eat something and go back to rest." Senju Tobirama nodded and left the laboratory.

"How about visiting your home tonight?"

Tsunade opened the lunch box and took out the food inside and arranged it.

"Huh?"

Rei was stunned when he heard this, and looked at Tsunade in surprise.

"You haven't been home for three years. The last time you went home, only Genki should be at home, right?"

Tsunade handed the chopsticks to Rei.

"Okay, then I'll go back and inform them."

Rei nodded when he heard this, and sat opposite Tsunade and started eating.

  ...

On the other side, Hiruzen and the other two were also on their way to the Land of Demons.

Land of Demons is very far away from Konoha.

Starting from the Land of Fire, one has to pass through the Land of Rain, the Land of Birds, and the Land of Bears before reaching the Land of Demons.

"We have to be alert next." Hiruzen stopped and said to Jiraiya and Orochimaru.

"But we are still a long way from the Land of Demons."

Jiraiya was stunned when he heard this, and said to Hiruzen in confusion.

"Baka~ The area ahead is the Land of Rain. Recently, there are obviously more rebellious ninjas and wandering ninjas in the ninja world."

Orochimaru glanced at Jiraiya and explained softly.

"How could I, Jiraiya, not know about this? I just want to test your ability to grasp intelligence! Baka!"

Jiraiya opened his eyes wide and shouted to Orochimaru.

He looked like a leader teaching his subordinates.

Orochimaru looked at Jiraiya helplessly. After all, he was on a mission now, and he was too lazy to deal with Jiraiya.

He said in perfunctory manner "Ah, ah, awesome."

Jiraiya seemed not to hear the perfunctory tone in Orochimaru's words, and nodded proudly.

  ...

"Rei and Tsunade?"

Jasmine was slightly stunned when she saw Rei and Tsunade coming in hand in hand, then she stood up and greeted them.

"Have you eaten?"

Holding Rei with one hand and Tsunade with the other, Jasmine led the two into the house.

"I have eaten." Rei said to Jasmine.

"It's been a long time since I last saw Rei and Tsunade. They've grown so tall now."

Jasmine smiled and nodded.

After not seeing each other for three years, somehow, I felt a little strange.

"Aren't we back now? Mom has become more beautiful again?"

Rei naturely felt the strangeness and said to Jasmine with a smile on her face.

"You are so disrespectful."

Jasmine patted Rei on the back in annoyance, but with this little joke, the strangeness of not seeing each other for three years also dissipated a lot at this moment.

When I entered the house, I happened to see Kenji who was playing chess with Genki.

So Rei put his hands behind his back and walked slowly towards Kenji.

"Hey, our captain's chess skills are still as good as before?"

"Of course! After all, he has lived more than ten years longer than a certain squad leader."

Kenji raised his eyebrows and gently nudged his son standing behind him with his elbow.

Rei bowed in cooperation.

On the other side, Tsunade was sitting with Jasmine and chatting.

"I heard that you and Rei are developing sage arts?"

Jasmine poured a glass of milk for Tsunade, and Tsunade took it with both hands.

Today, Senju Tobirama came to talk about this matter. Both Jasmine and Kenji were very supportive of this matter.

"Well, my grandfather hopes to develop sage arts that can improve physical fitness ."

Tsunade said to Jasmine after hearing this.

"Well, is the experimental process going smoothly?"

"Actually, it's not going smoothly."

At this time, Rei came to Tsunade and said to Jasmine, while pouring himself a glass of milk.

"It's just that your son is too good, and the progress is too fast, and it can't be suppressed."

Facing Jasmine's puzzled and concerned eyes, Rei raised his eyebrows slightly and said with a playful smile.

"I believe this, my son is too good."

Uchiha Kenji, who was playing chess on the side, smacked his lips and said slowly.

"Well, after all, he is my younger brother, there is nothing he can't do."

Genki raised his eyebrows and shook his head while playing chess.

"You guys!"

Jasmine glanced at Tsunade, who couldn't help but laugh while sitting opposite her, and said unhappily.

"Let's stay here tonight?"

Jasmine glanced at Rei who was walking towards the chess game on the side, and said to Tsunade.

"Okay."

Tsunade nodded and said without hesitation.

  ...

"Genki, you can't do this, you have to play like this."

At this time, Rei was standing behind Genki, frowning and pointing.

Genki pursed his lips and was too lazy to pay attention to Rei.

"Tsk, you don't listen to me, now you arelosing?"

Looking at Genki who was at a disadvantage, Rei continued to point.

Genki exhaled a breath of turbid air and continued to focus on the chess game in front of him.

"If you listen to me, you will definitely not lose."

As Genki was completely defeated, Rei mocked mercilessly.

"Come on, let's go to dojo, I want to se how much you improved"

Genki stood up suddenly and said to Rei.

Kenji and Jasmine, who saw this scene, couldn't help but smile a little.

It's been a long time since we had a family reunion like this.

  (End of this chapter)