"Huh, it's actually a bit different from the one just now?"
After scanning Nezuko's body, Adam's eyebrows suddenly twitched.
When he first appeared, he had actually used a mental scan on Akaza, Upper Rank Three.
Although he wasn't concerned about the power of creatures like demons, he still needed to understand them.
After scanning, he discovered that the reason demons could be Sage, possess such powerful self-healing abilities, and use Blood Demon Arts like superpowers, was mainly due to a very special energy within their bodies.
This energy leaned towards darkness, which is why it feared the Sun.
Demons could strengthen this energy by eating humans, thereby making themselves more powerful; the more they ate, the stronger they became.
It was precisely because of the influence of this strange energy that demons' sanity became problematic, as it affected the mind and thus a person's instincts.
Once a person became a demon, they would almost lose all memories from their human life, retaining only their deepest obsessions as a human and the bloodthirsty, man-eating instincts influenced by this energy.
But Tanjiro's sister, Nezuko, was somewhat different.
Adam discovered that the energy within Nezuko's body was essentially the same as the energy within Akaza's body, but it was undergoing a strange transformation.
This transformation was causing it to shift from a dark-aligned energy to a neutral-aligned energy.
Once the transformation was successful, the energy's function would not change, but it would no longer be restrained by the power of light.
This meant that Nezuko would no longer be affected by the demon's instinctive bloodlust and cannibalism, nor would she fear the Sun; she could walk normally in the Sun like a human and use all of a demon's abilities.
"Then I'll help you speed it up!"
Adam directly infused a trace of his supreme power, quickly enveloping the energy within Nezuko's body, and in the blink of an eye, he completed the energy transformation that would have otherwise taken another half a year.
At the same time, his mind invaded Nezuko's mind, unsealing all the memories that had been sealed deep within by the energy.
"How is it?"
Tanjiro asked with a face full of anticipation when he saw Adam withdraw his hand.
Adam shook his head, and Tanjiro's face immediately showed disappointment, then he forced himself to cheer up and thanked him.
The transformation from demon to human had never been successfully recorded, even Lady Tamayo, who had hundreds of years of medical experience and had modified her own body to escape Kibutsuji Muzan, only had a slight hope with extensive research on demon blood.
And although this Doctor was miraculous, just a touch like that probably wouldn't reveal anything.
"Although I cannot temporarily turn her back into a human, I just used a special method to release the memories hidden deep within her body, and I also guided her body to ensure she will no longer be troubled by the Sun in the future."
Adam explained with a smile.
At this moment, Nezuko happened to wake up, and upon seeing Tanjiro, she immediately returned to her normal size and then pounced on him.
"Brother!"
"Nezuko, you... you... you can speak!"
Hearing Nezuko's voice, Tanjiro's tears immediately streamed down.
And Nezuko immediately wiped away his tears with her hand.
"Brother, I remember everything now. You've worked so hard these past years."
At this point, Nezuko had recovered all her memories and knew that her brother, Tanjiro, had traveled extensively for her these past few years, narrowly escaping death multiple times, and had almost been condemned by the Demon Slayer Corps because of her.
"It's all Brother's fault. Brother didn't protect you all well."
Tanjiro's tone was full of self-reproach.
"She really recovered her memories."
Kyojuro, the Flame Pillar, looked on in disbelief.
Composing himself, Tanjiro bowed again to Adam to express his gratitude.
"Doctor, thank you for treating my sister."
Although Nezuko had not yet become human, she had recovered her sanity and memories and was no longer afraid of the Sun, which basically meant she was almost fully recovered.
Adam nodded:
"It's no trouble at all. My name is Adam.
I will research your sister's condition when I return; perhaps I can find a way to completely cure her."
"Then thank you very much, sir."
Tanjiro and Nezuko bowed together again to Adam.
"Flame Pillar Lord!"
At this moment, outside the forest, shouts also came, clearly indicating the arrival of the Demon Slayer Corps' rescue and medical teams.
"Alright, I have things to do, so I'll be leaving first."
Upon hearing this, Adam's body slowly floated up from the ground.
This scene immediately stunned Tanjiro and the others, because even demons had never been seen to fly in the air out of nowhere.
Demons that could fly, at the very least, needed to grow a pair of wings on their backs.
But Adam had nothing on his back right now.
"Mr. Adam, how can I find you later?"
Seeing Adam about to fly away, Tanjiro hurriedly asked.
"No need to look for me. I've left a mark on you. I'll come find you if anything happens."
At this, Adam suddenly thought of something, conjuring a sack out of thin air and throwing it on the ground.
"These are magical beans I grew, called Senzu Beans. One bean can immediately heal all injuries. They're for you."
With the Senzu Beans, Tanjiro shouldn't die so easily, and whether it's training or fighting, he would be more persistent, progress faster, and comprehend new things.
Looking at the large bag of beans that had fallen from the sky, everyone was bewildered.
Are there such magical beans in this World?
"Let me try."
Zenitsu Agatsuma, who was injured from the previous battle, stepped forward, picked up a bean, and threw it into his mouth.
Instantly, all his injuries healed, and even his rumbling stomach was filled.
"It actually works!"
Everyone was also somewhat dumbfounded at this sight.
"With these Senzu Beans, the demons' self-healing ability will no longer be an advantage!"
Kyojuro picked up a Senzu Bean, looking at the spot where Adam had disappeared, his face filled with excitement.
When fighting demons, as long as they protected their necks, they would be fine no matter how much they were injured elsewhere, but the Demon Slayers couldn't do that.
So, unless their strength was far superior to the demons, it was truly difficult to kill them.
"What a miraculous Doctor!"
Medical abilities that completely defied logic, being able to conjure things out of thin air, and even fly—demons didn't have that many abilities.
"He really overcame the Sun problem!"
Turning his head to look at Nezuko, he happened to see Nezuko cautiously extending her hand to the place outside the shade where the Sun could shine, and she truly was not harmed by the sunlight.
So he immediately said to Tanjiro and the others with a serious expression:
"Regarding this Doctor, don't say anything later, and don't tell anyone else when you go back. We'll decide after I report to the Master."
If Kibutsuji Muzan knew that a demon could be fearless of the Sun, he would probably go mad.
Actually, he had wanted to invite Adam back to headquarters just now, but Adam flew too fast, and he had been in shock, so he didn't get a chance to say it.
On the other side, after flying into the air, Adam immediately locked his mind onto the location of Tanjiro's original home, then directly teleported there.
"Samsara of Heavenly Life Technique!"
Appearing before the graves where Tanjiro's mother and younger siblings were buried, he directly clasped his hands together.
He had initially thought about not resurrecting Tanjiro's deceased family members yet, but then he realized that if he were to resurrect them later, Tanjiro's family members might have already reincarnated, which would be awkward.
So he decided to resurrect them first, then place them in the Primordial Space to freeze time, and release them when needed.
This way, it would be foolproof... (End of Chapter)