Speaking of which, after practicing the blood limit yesterday, the world always felt something was wrong with her body this morning. Perhaps it was because of the excessive consumption of chakra yesterday, and the world thought so. However, adhering to the principle of caution. That afternoon, the world came to the medical room of the Uchiha clan. The person who received her was Uchiha Rino, who had treated her, a short girl in her twenties and beautiful appearance.

Speaking of the Uchiha clan's medical system, it can be said that the configuration is almost female. Why is this happening? Whether psychologically or physically, most women are not very adapted to the atmosphere of the battlefield. In addition, women are more careful than most men. Therefore, the meticulous work of medical ninjas has gradually been handed over to women in the Uchiha clan. This choice has almost become a routine for women in the clan to become medical ninjas. Of course, the world is different from them. At the age of six, he completed the trial within the clan, breaking the trial age record in the history of the Uchiha clan. She told all male tribesmen what is the power of women.

"Miss World, you should not be quiet as the doctor said." Uchiha Rino pulled out his right hand with emerald green chakra placed on the world's chest and said to her. Perhaps because of the world's achievements, it is an extremely powerful existence for the Uchiha clan who advocates power. Therefore, Uchiha Rino added the honorific title of "Miss" in his conversation with the world. This is definitely not the honor that the world has won as Uchiha Tashima's daughter.

"Ri No-chan, just call me the world. You don't need to call me "Miss", "Miss" to call me." The world waved his hand and said embarrassedly.

"Okay! World." Uchiha Rino said helplessly: "Don't try to change the topic. World, you didn't listen to the doctor, and you did ninja practice!"

"No big move," the world turned aside and replied, "I just practiced chakra." Because there is no systematic summary of the world of blood transcendence limit research, she is not going to tell outsiders the news now. Just like when the world was six years old, the "Summary of Cultivation of the Changes in the Nature of Chakra" was only taken out after it was completed.

Hearing this, Uchiha Rino frowned and said, "You have used up your chakra while practicing, right!"

"That's right!" Seeing that I could no longer hide it, the world simply admitted it openly. Then he said, "Yesterday, I was practicing ninjutsu and consumed a lot of chakra. I felt a little uncomfortable when I woke up this morning."

"Do you know? In the world, you suffer internal injuries! It takes a lot of time to fully recover. Although ninjas have chakra, the recovery is faster than ordinary people. However, once ninjas consume a large amount of chakra during the injury, the condition will aggravate. Your wounds are now vaguely cracked. If you still do things randomly, even the Six Path Immortals can't save you!"

"Is it that serious?" the world widened his eyes and said, "Is there any way to recover from his injuries soon!"

"Don't doubt my profession! Of course, there is a solution." Uchiha Rino said an unexpected answer from another world. After all, this answer is a bit incomprehensible to the world.

"Hey~, is there really? Since there is such a way, why not use it?" the world asked subconsciously.

"Because this method will consume a certain amount of chakra," said Rina.

"What does that matter?" the world asked with a frown.

"The consumption of this chakra is permanent." Uchiha Rino said with a wry smile, and stood up and said to the world: "I'll get something for you to see." As he said that, he walked out of the medical examination room. About half a minute later, Rino reappeared in front of the world and handed a thick, old book that seemed to have a certain history in his hand to the world, and said, "Open it to page 343!"

The world that took over the book was skeptical and turned the book to the page that Rino said.

Seeing the world reading the contents of the book, Rino also began his own explanation: "This book is the origin of the Uchiha clan's medical ninjutsu. Who wrote it? This can no longer be verified, so I won't mention it for now. This book describes the composition of all meridians, tissues, and organs in the human body. It also explains the true meaning of chakra."

"The true meaning of chakra? Haven't the Six Paths Immortals explained it?" The world raised his head and said in confusion.

"That's right! Chakra is composed of spiritual energy and physical energy, which is not wrong. But in this book, the existence of the two is explained more clearly. Spiritual energy is a force generated by the thinking movement of the human brain, and physical energy is the force obtained by the human body's digestion after ingesting food. Although this is a kind of power, there is no problem with regarding chakra as a substance in the body."

"Chakra return system!" The world screamed in surprise, as if he had seen something incredible.

"I'm very surprised. To be honest, I was also surprised when I saw this!" Rina smiled and said, "The person who wrote this book found that after using a large amount of chakra, the ninja can recover all chakra after one night even if he didn't eat. So, where did this chakra come from? After his (her) research, he (she) finally found the chakra's return system. Taking this as an example, take the futuristic fireball technique as an example. The ninja ejected the high-hot chakra in the posture of a fireball. After the fireball lost its stable structure, the chakra would return to its original posture and return to the ninja's body with its connection with its body."

"So that's it!" The world was connected at once, and also solved the mystery of the return of the shadow clone.

"The author believes that matter and energy will neither increase for no reason nor decrease for no reason. If such a situation occurs, then it must be that matter or energy is converted into another new substance and energy. Medical ninjutsu is a technique to repair human trauma. Generally, the function of this technique is only to repair wounds. When a patient is critically ill, it must convert the patient's chakra into the cells that the patient lacks to repair the body. In this technique, the consumed chakra will be permanently consumed. Therefore, after each seriously injured ninjutsu is rescued, the chakra will be reduced to a certain extent, which greatly reduces the strength of the ninja. Therefore, our medical ninjutsu generally treats the wounds of the seriously injured patients until they are not in danger of life, and the patient's body will repair itself to eliminate side effects."

"Hu~", the world exhaled, closed the book, stood up, bowed to Rino, and said, "Thank you, the medical ninjas for your hard work to us. I will listen to you and rest well."

"Ah!" Li Nai looked at the world and bowed to her, quickly helped her up, and said embarrassedly: "It's nothing! Are you not protecting us in front of you! Don't be so polite!"

Then, the two of them smiled and said for a while. Until the world saw that it was getting darker, they said to Li Nai: "Li Nai Jiang, can I take this book back and read it?" The world pointed to the book in his hand.

"Hey~! Does Shijiang also like medical ninjutsu?" Rino said with a smile.

"Well! I have talked so much to say to Rinochan today, and I am a little interested in medical ninjutsu. In addition, I have been resting these days, if there is no book to read, it would be so boring!" The world smiled.

"Then take Shijiang back!" Li Nai said generously.

"Then I'm sorry!" The world picked up the book, said goodbye to Rino, and left the medical examination room.
Chapter completed!