Menma and Hashirama, what happened in Teyvat

"Ah this..."

Watching Menma take off his robe and expose his back to show the wound more clearly, Hashirama felt a little speechless, but he didn't know how to complain. In the end, he could only force a thousand words into one sentence: "What is your conclusion?"

"It's just so-so. It doesn't seem as severe as I thought. It's like an ordinary ice cube was instantly applied to the wound."

While placing one hand on the wound and using a very small amount of fire chakra to relieve the freezing sensation on the wound, Menma answered Hashirama's questions while also making comparisons in his mind to give himself a certain reference understanding of the elemental power of this world.

Menma has all seven types of chakra, so he can use fire chakra. As the reincarnation of Ashura, he should not have yin attributes, but... who made him not Naruto, but the opposite of Naruto?

Hashirama has all the attributes except Yin. Although his Wood Release is more than enough for conquering the world or doing greening, it does not mean that he only knows Wood Release among the escape techniques.

As the coldness from the wound was dispelled, the coagulated blood began to flow again, and naturally some blood would flow out of the wound, but Menma didn't care about it.

"I'll trouble you from now on." After quickly wiping off the flowing blood to prevent it from staining his pants, Menma immediately lay down on his bed, signaling Hashirama that he could begin the operation.

"Okay, but don't forget that this kind of thing is still very dangerous. Be sure to tell me if you feel any strange or uncomfortable." Seeing that the meeting was ready, Hashirama did not hesitate any more. After reminding him again, he cut the kunai in his hand on his other arm.

"Grass (an elemental attribute)! Cutting the flesh... it really hurts..."

If this was during a battle, this little pain would not be a big deal for Hashirama, and he might even become even more excited and fanatical because of this. Unfortunately, this was not the case now.

After cutting off a small piece of flesh with the kunai, Hashirama quickly put the flesh aside and began to heal the wound with medical ninjutsu. Although this level of injury could be healed quickly without doing anything, he was in pain and just wanted to treat the wound quickly.

After that, after treating his arm, Hashirama picked up a small piece of flesh from the kunai and gently placed it on the wound on Menma's left lower back, then pressed it in with a little force.

Even though stuffing something into the wound would cause extreme pain, Menma was able to hold on in the end thanks to his strong physical and mental abilities, and didn't scream like Hashirama just did.

"It should be about time... Let's use medical ninjutsu."

Following Menma's reminder, Hashirama began to stimulate Menma's wound with medical ninjutsu. Since the essence of medical ninjutsu is to use Yang-tun chakra to promote cell division and proliferation, the wound covered by Hashirama's hand and the piece of flesh began to proliferate at the cell level and eventually grew and fused together.

As the cells merged, the powerful corrosiveness of Hashirama's cells soon took effect, and they began to attack the surrounding Menma's body cells, trying to engulf and assimilate them.

"Ahh!" The pain that came from the cellular level made Menma, who had originally clenched his teeth, unable to help but scream out.

"No...are you okay, Menma?!" Hearing the shout, Hashirama, who was already very nervous, immediately asked with concern.

"I can still... hold on..."

Hashirama's cells were indeed powerful, and they quickly occupied the entire area that was originally a wound, so that the skin on the back of Menma's waist had basically turned from flesh color to pale white.

Realizing that he couldn't just hold on, Menma decisively concentrated his chakra on his lower back, trying to slow down the erosion of Hashirama's cells. At the same time, he decisively opened the Mangekyō Sharingan in his right eye and injected the pupil power through his body.

Although the chakra's suppression ability was not good, with the injection of the Mangekyō Sharingan's pupil power, the two forces of yin and yang, which were mutually reinforcing and yet complementary, gradually began to neutralize, which also effectively suppressed the spread of Hashirama's cells.

"Stopped?" Hashirama, who had been observing Menma's wound, naturally would not miss this. He was surprised but also very happy about it.

"It's not over yet..." Menma, still holding back, squeezed out these words from between his teeth, and then began to output chakra and eye power to the wound again.

Although Hashirama's cells seem to be calm now, only Menma himself knows how turbulent the undercurrent there is.

The current result is just that my power and the power in Hashirama's cells have temporarily reached a result of competing against each other. If I want Hashirama's cells to truly integrate into my body, what I need is not "resistance" but "acceptance".

So, while Menma used the power of the Sharingan to suppress the corrosiveness of Hashirama's cells, he used his own chakra to guide the energy contained in Hashirama's cells as much as possible so that it could be slowly accepted by himself.

That's right, even if it accepts, it must maintain its own dominant position and let Hashirama cells know who is its real master at present. If it cooperates with Hashirama cells to bring the chakra nature closer to it, it will only accelerate the process of it devouring and assimilating its own cells, which will naturally be more dangerous.

Uchiha Madara and Uchiha Obito did this, and Yamato also accidentally did this when he was an experimental subject, so they could even use Wood Release. This is naturally a very important factor in the successful fusion of Hashirama's cells, although it is not the only one.

Menma does not have the Uchiha bloodline or the peculiar receptive physique of Uchiha Shin. The only three ways of borrowing power he can use are the Uzumaki bloodline, the Ashura reincarnation physique, and the Mangekyō Sharingan in his right eye. The effects of the first two are not very good, so this method is particularly important to him.

Just like that, Menma lay on the bed, enduring the pain and adjusting his energy all the time. Hashirama sat beside the bed, looking at Menma anxiously, ready to rescue him at any time.

Time passed quickly and the whole night passed...

……

……

……

"...So, even you think this injury is difficult to deal with?"

It was midnight. In a room of the West Wind Church, Rosalia was lying on a bed with her upper body almost exposed. Barbara, a prayer priest and Mondstadt idol, was standing beside her and was using water elements to treat the wound on Rosalia's left shoulder with a nervous expression.

"Yes... The bruise on your waist is relatively easy to treat, but the wound on your left shoulder is too troublesome. After all... it is too deep..."

"Will it have any effect on me?"

"Well... it's not a big deal. The wound didn't damage your skeletal muscles and tendons. As long as you get enough rest, you will be able to recover. But... it's likely that a permanent scar will be left on your shoulder..."

"Permanent scars?" After hearing Barbara's words, Rosalia couldn't help but think of what Menma had said before:

[What I want... is for you to remember this lesson forever! ]

"Ha...that's it..."

"What do you mean?" Barbara felt a little confused when she heard Rosalia's voice, which seemed to be filled with a bit of disappointment and sneer. "Also, it's so late now, how did you get this wound? It doesn't look like a sword wound or a gunshot wound... Did you fight with someone?"

"You don't have to worry about this. It's not good for you to know too much." Rosalia sat up and put on the torn clothes that were still stained with blood, regardless of the fact that Barbara was still treating her hands.

"Hey! Rosalia, the wound hasn't been healed yet!"

"It's incurable. Since even you, the best doctor in Mond, said it will definitely leave scars and won't affect my movements, I won't bother you any more. After all, it's so late, you should rest."

"But……"

"I'm already overly bothering you by coming to see you. Since I don't like working overtime, I shouldn't force this on you. Go to bed. I'm already very grateful that you can tell me these things today."

"Rosalia..." Barbara felt a little disappointed when she saw Rosalia leaving without looking back. She didn't understand what was wrong with Rosalia, and she couldn't figure it out even if she tried to think about it.

After leaving West Wind Church, Rosalia looked through the torn part of her clothes at the wound on her left shoulder that she had bandaged again and sighed:

[After so many years, I never thought that there would be a day when I would be taught a lesson...]

Thinking of this, she suddenly laughed at herself, her eyes filled with complicated emotions.

[However, what you said seems to make sense, and the so-called lesson you left me is indeed "profound". Haha, anyway...

I have remembered you. 】