Start the time travel simulator from Sky Sister!

[This battle has made you even more famous. You should know that you were only eight years old at that time.]

[After Tobirama returned with his team and heard about this, he was even more impressed with you and was planning to train you to become the Third Hokage.]

[You know a lot of things will happen later. After this battle, there will probably be nearly twenty years of peace. You must continue to become stronger during this time.]

[Tsunade has always been by your side, and has also developed the Hundred Healings Technique. At the same time, you warned Tsunade not to use ninjutsu to create regeneration at will, and only in critical moments, after all, this will accelerate cell division and regeneration, thus shortening lifespan.]

[Of course, there is no problem in simply using the Hundred Healings Technique to utilize chakra to enhance physical skills. ]

[You also asked Tsunade to go to the Wet Bone Forest and sign a summoning contract with the Slug Sage. Tsunade was unwilling to do so and wanted to continue pestering you.]

[And you told her that if she didn't go, you would never talk to her again. Tsunade suddenly got inspired and listened to you and went over obediently. ]

[She has been completely controlled by you. After all, she is your sister who you have watched grow up.]

Chapter 71: Nine years old, Jonin level

【one year later.】

[Originally, Tobirama wanted you to go to the Ninja Academy, but the gap between you and the students there was too big, so he didn't force you to go. Instead, he wanted to test your current strength.]

[Tobirama sent a Chunin to fight you, but you actually used your super strength, and I easily defeated him with just Taijutsu.]

[Seeing this, Tobirama directly determined that you have the strength of a jonin, and officially announced that you are the next generation of Hokage successor. If Tobirama encounters an accident or retires, you will inherit. ]

[After all, it was too amazing that he had the strength of a jonin at the age of nine. Moreover, he was the grandson of the first generation and he also made such a powerful recovery potion. Naturally, no villagers objected.]

[And then, Tobirama also began to train you personally, but you had already learned most of his ninjutsu, so he could only train you in taijutsu. ]

[You just want to learn the Eight Gates Ninjutsu. You have an impression of this technique, but you need a strong physique to support the use of this technique, so you hope that Tobirama will train your body intensively.]

[When Tobirama heard that you were going to start exercising, he would naturally help you. Your physical strength is good, and you have a strong recovery ability, but I feel that you still need to increase your strength.]

【…】

"In the world of Naruto, I only have a little bit of recovery and physique... but I may not have an advantage in strength."

"But if it is a skill that uses chakra to use supernatural powers, then it is another matter."

You whispered.

After all, his recovery ability is really strong!

He possesses the recovery ability of a ghost king.

As long as he wasn't possessed by a poisonous insect or a common killer with abnormal abilities that specifically countered him, it shouldn't be that easy for him to die.

Chunchun encountered tough opponents twice before.

That poisonous insect can devour cells, and use its devouring power to penetrate one's body, and then all the cells in the body will be devoured by the poisonous insect. Just the memory of it is enough to make one's scalp tingle.

Not to mention the killing of gray bones, all the cells in the body collapsed one after another like an infection, which is also a very exaggerated technique. A person will be crippled if touched.

This Naruto world is not on the same level as the Demon Slayer world, and there are many more ways to destroy it.

You have to be careful.

【…】

[Then, you will follow Tobirama and start training your body. Your physical strength will be endless. You can train all the time, and your recovery ability is also quite terrifying.]

[In order to enhance the training effect, you made yourself a 100KG weighted leg armor and started wearing it every day. It was actually very uncomfortable for you at first. Even breathing was uncomfortable after walking a distance.]

[But you quickly adapted to it. After all, this was also training for the Eight Gates Ninjutsu, and you were very excited.]

[Plus, your recovery ability is very terrifying, so you are also very curious whether you can still survive after opening the eight gates, but you dare not try it easily. ]

[During this time, Tsunade also returned from the Wet Bone Forest. Apparently, she had completed her training and returned. Now her recovery ability has improved a lot, and her chakra has increased significantly.]

[Looking at it... it seems that a certain place has also become much bigger. 】

[Tsunade is just like usual. She pounces on you without saying a word when she sees you.]

【When Tobirama saw that both of you were there, he asked if you wanted to go meet your younger brother, Nawaki, because you had been staying in the laboratory and didn’t see Nawaki very often, and Tsunade had been pestering you since you were little, so she wasn’t very familiar with Nawaki either.】

[You just heard that Nawaki has always been taken care of by Uzumaki Mito. After all, your parents died on the battlefield a long time ago, so your grandmother has been taking care of you.]

[You said you were not interested. You still need to research new ninjutsu and optimize these ninjutsu.]

[When Tsunade saw you like this, she immediately made her position clear and stood by your side. ]

[Tobirama sighed with a little helplessness, but he still respected you. After all, although you are my younger brothers, I don’t see you very often. These two used to stay in the laboratory every day.]

[Tobirama boasted that he was obsessed with creating ninjutsu, but he didn't expect that his eldest brother's grandson was even more obsessed with it. Maybe he inherited it from me, after all, he is his eldest brother's grandson. ]

[That's it. Once Tsunade comes back, you will take her to the laboratory and continue to study your latest project to optimize the Impure World Reincarnation to a better level so that you can better control the dead.]

[Tsunade has become your assistant as usual, helping you conduct these experiments and reviving several dead ninjas, but she will control their consciousness and forcibly manipulate them.]

[And your experiment was also very successful, and this power was also successfully strengthened. ]

[Then you want to use the DNA of Hashirama Senju in Hashirama's cells to start reincarnating Hashirama Senju, but the lack of a living sacrifice gives you a headache.]

[After all, you can't kill people at will in Konoha for the time being, so you postponed this matter. You plan to find a solution later.]

[During this time, you have already learned the Wood Release of Hashirama Senju, but your chakra is still far inferior to Hashirama's, so it is difficult for you to perform large-scale ninjutsu.]

[You have come this far, and you plan to take Tsunade out to relax. After all, Tsunade has been staying with you in the laboratory since she came back, so you should celebrate her return.]

[When Tsunade heard that you wanted to celebrate for her, she was immediately overjoyed, took your hand and ran out. ]

[Tsunade likes to eat tender chicken, so this time I will take you to a place where you can eat roast chicken and drink shochu. Konoha is still relatively simple now, not as prosperous as it will be in the future, and the shops are also a bit simple. ]

[Tsunade said she would treat them today, after all, she hadn't spent any money in the Wet Bone Forest for so long.]

[You feel that you are the future big fat sheep, and you don't care about money at all. However, because Tsunade has been doing scientific research with you for a long time, she has lost her original gambling habit. ]

[This is indeed a good thing for you, but she ordered a bottle of wine today. You know, she is only eight years old, and she always feels that alcohol is not good. I said that I wanted her not to drink, but she looked pitiful. ]

[You had no choice but to let her drink a little.]

[As a result, she started to sway from side to side after eating and drinking. It was obvious that she was drunk. You rubbed your forehead helplessly.]

[Tsunade finally leaned on your arms, and you had no choice but to carry her back, and took the half-eaten chicken and shochu back with you.]

[Because you and Tsunade have been in the laboratory for a long time, we have converted two rooms in the laboratory specifically for you and Tsunade to sleep. ]

[You brought Tsunade to the bedroom of the laboratory, put her on the bed, and then ate the roast chicken and drank shochu. I have to say that this wine is really spicy.]

[After a simple meal, you plan to study ninjutsu and then go out for some exercise. Now, you basically spend every day doing research and exercise.]

[However, every time you go out, you always attract a lot of girls from Konoha, which makes you feel quite troublesome. ]

……

……

……

……

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Chapter 72: Impure World Reincarnation, Senju Hashirama

[Nearly twenty years have passed without you noticing, and you know that the Second Ninja World War is approaching. ]

【During this time, Tobirama also managed Konoha very well. 】

[You and Tsunade's appearance basically remains at the age of 18. After all, you both know the Hundred Healings Technique, and scientific research has also made progress during this period, creating a drug that can delay cell aging.]

[And this drug is also used by Tobirama. At this time, Tobirama's appearance looks almost the same as it did 20 years ago. ]

[But at 18 years old, Tsunade has already grown into a slender lady... She has also developed quite well.]

[Tsunade likes you very much. She listens to whatever you say. She also kisses you all the time. You feel that you two are not like siblings now, but more like... a couple.]

[You don't mind it, after all, you like it very much, and you are also happy that she wants to be intimate with you. ]

[This is also thanks to your current control over your physical condition. However, your body fluids are quite powerful aphrodisiacs, as discovered through research.]

【Add to that the craziness of those women when you go out, and you also understand the peculiarities of your own physique. 】

[You recently heard that the Whirlpool Country was suddenly destroyed. It was so sudden that even the Second Hokage Tobirama was unable to react. You also started to pay attention to this matter.]

[Soon, the few remaining members of the Whirlpool Country came to Konoha. The first to come was Uzumaki Kushina. You noticed her. She is a very cute little girl.]

[You knew that Kushina would be bullied by her peers after entering the village, so you asked Tsunade to be a teacher at the Ninja Academy to protect Kushina and send her home every day. You didn't want Kushina to be bullied.]

[Tsunade heard your words and didn't expect you to value the children of the Uzumaki clan so much. But it makes sense. After all, their grandmother Uzumaki Mito is also from the Uzumaki clan, so they are relatives.]

[Tsunade agreed to your request, but at this time she also made a request, that she needs a passionate kiss from you after she comes back from protecting Kushina every day.]

[You didn't expect Tsunade to be so direct, but it's true. After all, her real age is about 26 years old, but she is still a young girl, so you agreed to her. ]

[Tsunade is very happy. You are on her mind. She hugs you and rubs you like crazy.]

[One day not long after, the guards you set up for Kushina really worked. Kushina was almost captured by the Jonin of the Hidden Cloud Village, but fortunately Tsunade saved her.]

[It was also on this day that you and Tobirama applied to teach Kushina by yourself and Tsunade. After all, only in this way would Kushina not be bullied in school. ]

[And Kushina will be the container of the Nine-Tails in the future, so she naturally cannot let it be damaged. Tobirama agreed to your request, and then Kushina became Tsunade's apprentice. ]

[After all, you have to study ninjutsu, so you don't have time to teach her. ]

【…】

Yuu also started to think when he saw this.

I really am just a hands-off boss, but if Tsunade is so obedient, then it won't be a big problem.

If Kushina continues like this, she will become his subordinate in the future if nothing unexpected happens.

【…】

[Kushina was fascinated by you when she saw you, and suddenly remembered Tsunade once said that it was you who asked her to protect herself, and it made her feel warm inside. ]

[But you don't care much. The war is about to start soon. You plan to use the enemy country's ninja to revive Senju Hashirama. After all, your grandfather is the God of Ninja. If he is alive, Konoha's combat power will be much stronger.]

[And your goal is to bring him back to life, use Hashirama Senju, and unify the five major countries now! ]

[As long as Hashirama Senju exists, it would be easy to unify the five great nations. This is not a difficult task, but we still have to worry about Tobirama.]

[So even if you are reincarnated as Hashirama, you cannot reveal his identity.]

[While you were planning all this, the Second Ninja World War also began. ]

[Tobirama originally wanted to stop the unrest with his elder brother Hashirama's peace philosophy, but he didn't expect that Hanzo of the Rain Village would directly attack Konoha and even mock it, not for anything else, but because Konoha is rich in resources.]

[Tobirama immediately became angry and decided to use force to solve all this. ]

[But this time you went against your normal routine and prepared to fight on your own, which immediately surprised Tobirama. After all, you have always been obsessed with studying ninjutsu, but never participated in a battle. ]

[Tobirama doesn't know how strong you are at this moment, so he wants to assign you some jonin. After all, you are very important to Konoha, and you have developed a lot of medicines that are useful to Konoha in the past twenty years.]

[But you refused. After all, you didn't want anyone to interfere with you this time. Plus, after all these years of hard work, you already have what it takes.]

[Tsunade wanted to go with you, but you refused. You asked Tsunade to teach Kushina here.]

[Although this is your first time on the battlefield, your training over the years was not in vain. At this moment, your feet, hands, and torso are all carrying weights.]

[The total weight is as high as 1000KG, which is one ton. You can only train your body to such a terrifying level by relying on your strong recovery ability. If it were an ordinary person, you would have died long ago.]

[So, with your normal physical skills now, ordinary jonin are no match at all. They are at least at the level of the Raikage, or even stronger. At this moment, you are fully confident even if you fight against the tailed beasts normally.]

[Not to mention that if you use the Eight Gates, once you open the seventh gate, I'm afraid your strength will be almost the same as Kai's Eight Gates.]

[This time, your opponent is Hanzo, you know that he uses poison, so you brought a lot of poison resistance potions, plus you have transformed your body before, your body is immune to 60% of toxins. ]

【Combining the two, you won't be afraid of even the toxins of the Salamander Hanzo. 】

[And that is indeed the case. You killed people in and out of the Hidden Rain Village seven times. Salamander Hanzo tried every possible means. His physical skills were no match for yours, and poison was useless to you. He had no way to deal with you.]