Mu Dun, the signature escape technique of the original Hokage, he relied on the power of Mu Dun and Madara Uchiha to join forces to pacify the troubled times and establish the first ninja village - Konoha Hidden Ninja Village.

Mu Dun is formed by the combination of the changes in the nature of water and earth, and is the most special existence among the ten types of retreat type blood inheritance limits.

The essence of Mu Dun is to use chakra to create plant cells, and it is the only ninjutsu used to create life among all types of Dunjutsu.

Of course, because the Mu Dun technique creates life, so in the matter of tailed beasts, Mu Dun also has a suppressive power that other Shu Shu can hardly match.

As for how strong this suppressive power is, the original Hokage can easily subdue the Nine-Tails, which can be seen.

Practicing Mu Dun requires ninjas to be proficient in the two nature changes of water and earth. At the same time, he needs to be familiar with the cell composition and growth patterns of plants.

And the cell composition ......

"Suppressive Power ......" Because his chakra attributes are fire and earth, Obito didn't look at the following cultivation profile. For him, the suppressive force described in Mu Dun's introduction gave birth to many questions in Obito's heart.

"Professor!" Suddenly, Rin and Kakashi's voices brought back Obito's consciousness, and he looked at the person who came, it was Sarutobi Hinata Slash!

At this point, Obito hurriedly got up and bowed: "Professor! ”

"You don't have to do that in the library!" With both hands pressed, Ape Fei Sun Slash signaled that they didn't need to do this.

Although the name of Sarutobi is "God of Ninjutsu", the title of "God of Ninjutsu" is more difficult to call. Under normal circumstances, everyone in Konoha greets each other in the name of "professor".

"Look at the way you guys look, you're all here to learn? Good at studying! People have to keep learning in order to maintain their current position. Don't say that you go backwards, even if you stand in place, you will be caught up by others. So, it's important to learn. Holding two books, Sarutobi sat down next to the three of Obito and said.

"Is it only possible to keep learning and maintain the current position?" Kakashi asked thoughtfully.

"Of course, because everybody is basically working hard and running forward. In this day and age, to stop making progress is to fall behind. Ape Fei Ri slash smiled and said, "You see, although there are many affairs in the village, I will still take some time out to read books, and people can't stop learning." ”

"Professor, you are so knowledgeable, can you tell me something about Mu Dun?" After a moment's hesitation, Obito still asked.

"Mu Dun, why did you suddenly ask this?" Glancing at Obito, Sarutobi asked.

"It's just that I'm suddenly interested in the deeds of the first generation, and the book says that the first generation once suppressed the nine tails with a wooden escape." Obito said.

"That's right! The original Mu Dun can indeed suppress the Nine-Tails. In fact, in history, Madara Uchiha also used the Sharingan to control the Nine-Tails. When it came to writing the wheel eye, Sarutobi glanced at Obito lightly, and continued: "There are two ninjas who are famous for their wood escape techniques, one is the first generation, you all know. And the other one is the Great Demon King. ”

"Demon King? Can the Demon King also do wood escape? For a moment, the puzzled Lin seemed to remember something. She remembered that in the Third Ninja War, she loved to use Mu Dun to bind the tailed beast.

"Definitely! The Demon King is indeed a master of wood retreat. Lin muttered.

"Wood Escape has a power that is difficult to match with conventional Escape Techniques, when the Demon King was still a Konoha ninja, she was in the first ninja war, but she defeated the alliance of the second generation of Tsuchikage and the second generation of Mizukage!" Sighing, Ape Flying Sun Slash recalled the past.

"Professor?" Kakashi's call brought Sarutobi back to reality.

"Sorry! Maybe it's old! Lately, I've been reminiscing about the past. Smiling apologetically, Ape Fei Ri Slash continued: "Because of the powerful power of Mu Dun, the village has studied Mu Dun for a while. At that time, worshipping the power of Kinoha, many of Konoha ninjas volunteered. However, after the intercolumnar cells were injected, those cells quickly burst away. None of those volunteers survived. At this point, the village halted the research and sealed the intercolumnar cells. ”

"However, for a while, ninjas and villagers have been missing in the village. Slowly, in the villages near Konoha Village, there were also cases of missing babies, adding up to a total of sixty or seventy! ”

"What the hell is this......" Kakashi was already stunned.

"What I'm going to say next is nothing more than rumors. However, there is a certain logic to these rumors. I heard that some people are still continuing to carry out cell transplantation experiments that have been sealed, and the adults between the columns. ”

"Even if it's a rumor, but why should it be?" Lynn asked.

"Perhaps, I want to get the art of Mu Dun! Even if it's me, sometimes there are, and it would be nice to have a Wood Ninja! In this way, the four generations do not have to sacrifice themselves to seal the Nine-Tails. ”

"Professor, what if...... I mean, if there really is a baby transplanted with intercolumnar cells......" Here, before Obito's words were finished, Sarutobi interrupted: "It is expressly forbidden to transplant intercolumnar cells to babies. Moreover, even if someone does do this, the success rate is very low. ”

"Of course, I mean, in case, if a baby is successfully transplanted, he should be ten years old by now!" After finishing speaking, Ape Feiri glanced at Obito without leaving a trace. After that, he closed the book and took the two books out of here.

"Ten-year-old ......" muttered in his heart, and Obito looked at the back of the ape flying and was stunned for a moment.

"Obito! Obito! Calling back the stunned Obito, Lynn looked at him and asked, "What do you think?" So distracted? ”

"Uh...... I'm thinking about the Demon King......" Obito casually found an excuse, and he said: "You said, the only two ninjas who have Mu Dun are the first generation and the demon king, so what is the relationship between this demon king and the first generation?" ”

"My father was a disciple of the Demon King, and I asked my father this question......" Kakashi said.

"White Fang senior~!" Obito just asked casually, but it also aroused his own gossip heart, and he asked curiously, "What did the white fang senior say?" ”

"The first generation and the Demon King...... It's a father-daughter relationship! Don't go around saying that, or I'll be miserable. After a moment's hesitation, Kakashi said with a frown.

"Father-daughter relationship? I remember that Rin's current boss, Senju Tsunade, is the granddaughter of the first generation! Didn't their clan have an heir to Mu Dun? Obito asked.

"Don't ask me! I don't want to ask Tsunade about that. Lynn shook her head and said.