Wanna Fuck?

"Hmm... These blood demon arts are really op," I thought to myself as I stared into the black and blank void. One could say I was really happy after getting the information about my blood demon arts.

As I already had biokinesis in my past life, I knew how powerful these things could get. The dual cultivation one is also very good, to say the least.

It might have been the most op blood demon art I ever saw or knew about if not for the fact I have one more blood demon art now.

The one I am most interested in is the "Demonic Heaven." Its ability reminds me of Ōtsutsuki and Gu Changge.

Since it can help me absorb any form of energy and then convert it into demonic engery and then it can also help me manipulate the demonic energy.

Since it can help me absorb any form of energy and then convert it into demonic energy, it can also help me manipulate the demonic energy.

This might be the most op blood demon I have ever seen in any Demon Slayer fanfic or even theories.

Even though this world is AU, I think the natural energy used to perform breathing techniques and blood demon arts still exists.

To put it in simple terms, I can absorb any form of energy, even the breathing techniques, and then turn them into demonic energy.

I can then use this energy to perform attacks similar to breathing techniques.

Though this blood demon art is just at its first and weakest level right now, it isn't that powerful yet.

The concept of levels in blood demon is new to me as well, to be honest.

It seems that the more often you use a blood demon art, the more proficient you become in it, and its level will increase, along with its power.

Though some blood demon arts may have specific conditions for leveling up.

"If this were an anime, its name might be Demon Slayer: Solo Leveling," I thought to myself before going completely silent. Suddenly, the void started to disappear, and a light emerged from it. Soon, I opened my eyes.

Third Person POV

"How much time has passed?" Muzan questioned in his mind as he opened his eyes, only to see the ceiling of his room.

"I can already feel my body recovering," he thought suddenly as he felt his body getting stronger and stronger.

It was clear his biokinesis was already healing his body and destroying that damn disease that had plagued him since his childhood.

Though the process was slow, his body was healing, and he might fully recover in a few days or a week.

"Muzan-sama, you're finally awake," Hatsumi's voice suddenly echoed from above his head. As Muzan looked over, he noticed she was much too close.

"Tell me, are you feeling any better after taking the medicine?" Hatsumi asked.

Muzan had been unconscious—or you could say sleeping—for almost the entire day, with Hatsumi staying to take care of him. Not that she did much, but she was there, watching over him.

It wasn't rare for Muzan to stay unconscious for a day or two after taking Hatsumi's medicines. He was just like a lab rat.

"Should I make her a demon?" Muzan thought, ignoring Hatsumi's question.

He was already planning for the future. He had to admit he was pathetic and stupid in his past life. Creating only 12 upper moons and 12 lower moons seemed foolish in hindsight.

Instead, he should have kidnapped people, forcefully turned them into demons, and sent them to annihilate the Demon Slayer Corps.

Alternatively, he could have turned the ruling class of Japan into demons and used them to dismantle the Demon Slayer Corps and find the Blue Spider Lily.

Mistakes were made, but not this time. Muzan would make everyone a demon and then rule the entire world.

"Hatsumi, I am feeling good, to be honest, and I want to walk outside for a bit," Muzan said, looking directly into Hatsumi's eyes.

"Walk?" Hatsumi thought for a second, as it was really rare for Muzan to leave his room, let alone walk outside.

"Okay, Muzan-sama," Hatsumi said as she stood up and started to help Muzan to his feet.

Muzan's body was really weak, to say the least, and that's why he needed someone to protect him and help him move.

Even though Hatsumi didn't look like it, she was quite skilled in martial arts along with medicine.

"It's a cloudy day today," Hatsumi said as she helped Muzan stand up and opened the door of his room, revealing dark clouds and not a trace of sunlight.

Muzan already knew it was a cloudy day, having seen the clouds from a small, uncovered corner of the window in his room. His window always stayed closed since he didn't like being in the sunlight much.

As Muzan exited his room, he saw a very familiar place: his family's castle, though it was more of a palace than a castle.

"Isn't that the adoptive piece of shit?" As Muzan started to walk, he heard a rather annoying voice.

Turning around, he saw Gonpachiro, his older half-brother. Gonpachiro had black hair like Muzan's but his eyes were light brown.

He was, if you compared him to Muzan, ugly—super ugly. He also had a bodyguard walking behind him..

"Ah, this bastard," Muzan thought to himself upon seeing Gonpachiro.

In his past life, Muzan had failed to kill this guy, and his descendants formed the Demon Slayer Corps that eventually killed Muzan.

"I didn't know the adoptive bastard could do things apart from lying in bed," Gonpachiro said once again, trying to provoke Muzan.

It's not like Muzan is really adoptive; it's just that Muzan was an illegitimate child born from a prostitute, and his father couldn't exactly announce he hooked up with a hooker.

"So, Muzan's father just acted like he was adopting a poor and helpless child, which was Muzan. So, even though Muzan was blood-related to the Kibitsuji clan, he's considered adoptive by others.

"You know that I am the adoptive one because I alone am the wanted child," Muzan said without hesitation after turning around.

Hearing this, Gonpachiro got a little angry. Even though he was not that smart, he could understand that Muzan was indirectly calling him an unwanted child.

"Are you saying Father didn't want me?" Gonpachiro said loudly, seeking confirmation that Muzan was indeed insulting him.

Since he didn't want a fight, not even with Muzan, who was essentially a cripple right now, Gonpachiro was like a dog that barks but lacks the guts to bite someone.

"Yeah, you're just a mistake that happened because of the dark," Muzan replied with a mocking tone and expression.

"M-Motherfucker! I will kill you once Father dies," Gonpachiro said in a stuttering tone after hearing Muzan not backing down.

Muzan, even before becoming a demon or before transmigration, was just like this—he would fuck you up if he wanted to.

But since he had gotten sick, he had become too tired to give a fuck about anyone, and Gonpachiro used this opportunity to bully him.

"Call me daddy then," Muzan said with a demonic smile upon hearing Gonpachiro call him 'motherfucker'. Since Gonpachiro was calling him 'motherfucker', it meant that he believed Muzan had fucked his mother.

Gonpachiro didn't even react as Muzan continued, "No, wait, don't call me daddy. Since you're so ugly, your mother would be too—I wouldn't even fuck her."

Gonpachiro was about to say something but ultimately gave up. As Muzan saw it, he was just the type of dog that barks but can't bite.

Meanwhile, both Hatsumi and Gonpachiro's bodyguard were enjoying Gonpachiro getting insulted.

But suddenly, they saw Muzan run as if his life depended on it, which it actually did, as sunlight suddenly appeared a few meters away from him.

"Muzan-sama!" Hatsumi also ran after Muzan, but she couldn't understand why she couldn't catch up to him.

He was running really fast, He possibly be faster than Usain Bolt if he weren't sick.

1 week later.

A week later, one could see Muzan lying on his bed with a bored expression while Hatsumi prepared his medicine as usual.

For the past week, Muzan hadn't been able to do much. He couldn't go outside during the day, and at night Hatsumi wouldn't let him go.

However, he had taken note of all the ingredients used in making the medicine from Hatsumi, along with where the Blue Spider Lily usually grew.

"This is boring," Muzan thought to himself, glancing at Hatsumi who was still focused on making his medicine. Then he pondered, "Should I try the dual cultivation blood demon art?"

Hatsumi," Muzan called with a straight face.

"Yes, Muzan-sama," Hatsumi replied, pausing in her medicine preparation.

"Wanna fuck?" Muzan asked, looking directly into Hatsumi's eyes.

{A/N: Comment something or say goodbye to the smut chapter.... :) }