_________________3rd Pov__________________
-Two days before the doctor arrives:-

After 4 weeks after he cured, now muzan is training at night, he is doing push-ups with one left hand while his leg is lifting a boulder about 2 m high , He practices to the point where his whole body sweats

And his organs worked so hard that his body was extremely hot.

"1993"

"1994"

"1995"

"1996"

"1997"

"1998"

"1999"

"2000"

"Huff, huff ..."

"It still pain of the *ss if i still train like this , and i don't khow how many time i almost dead while training without regeneration ? "

"Not to mention I also ate a lot of flesh for energy during that time..."

(Right , left arm , is done! , Now it 3 or 4 Am. there's still a lot of time , i need to test strength after training results)

Then he carry 3 boulders, each rock has nearly 3,5 m to 4 m ,
he placed each boulder about 7 meters away, then...
He touched the first stone

" thicc enough , let test my normal combat "
He prepared his fighting style , grip his hand , use all of his strength and launch his punch to a boulder

* Thwark*
*Crack*

Muzan's blow was so strong that it broke the boulder into pieces while still standing. Even muzan was surprised by the result.

( Jesus ! what is this strength ?! , this is the result after near death training ? )

(If I use force to punch ordinary people, their corpses will surely be gone. Otherwise, their parents would definitely not recognize their son's face. luckily , i already train to hold back in three week ago)

( Fine , then i use my speed...)

Muzan started using his speed, running around the boulders, then he use his kick, his punch, his chop . Those blows are so strong that it can cause the stone to deformed and was torned apart

He watched a 3,5 m boulder was broken into pieces, he smiled lightly :( now it's worthy for my hell training that i was done even though it cost so much energy for that .)

(Next, second rocc).

He goes to the second rock, a boulder that's it height is nearly 4 meters, unlike the first , this one is bit thicker . So this time, he's going to use his blood to transformation his body into weapon.

( Now , it time to use my blood art , huh? It good to test for this one.)

In under a second , He turn his arm into a large and very sharp blade.

( His arm transform into this , but a bit bigger , nearly 2 meter , and this art is not mine , it form Prototype)

Then he pointed the blade at the rock at 20 m away.

(Now!)

He started to use his speed , approach the boulder . In under millisecord , he start to cut the rock in all of his strength .

Then, muzan saw that boulder was nearly being cutted in half.

He saw , look sightly supried and said : (that... a clean cut , but not enough since range is too short , about 3 m due to it size . It sightly better than my perious test form a week ago.)

( May be... i will use my whip then...)

he transform his arm from blade to whip-like blade.
Then, he swung his sharp whip about 6 meter long at that the boulder and...

( Holy sh*t !)

Muzan was surprised by this result. Not only the boulder , part of the land under the rock was also cutted in half . He sweated :

(This whip is very powerful when fighting with crowds, but it is very dangerous when fighting with teammates. )

(I should use it when fighting alone , use normal blade is better.)

(but, i need to cut this rock into pieces first).

After that, muzan used both hands , transform into whips . slashing multiple times with insane speed , and cutted that rock into clean and small pieces , part of the ground under that rock was also cutted

then, he watched the boulder cut into pieces by his whips

( Good enough ! But i prefer blade than that whip because it too brutal.)

( Then , the third rock .)
........
-One day left -

in the evening, when Muzan eats with his family , while Muzan swallows food and thinks

(Endure !... Endure !... I hope nightmare will be end )

Although he somewhat improved about eating the foods made by humans and can absorb more nutrients than the first time he was eating the meal.
But, demon's taste is still different from human's. It was an nightmare fuel , like Hell gates awaits him when he eating it.

*Ex: If the taste of human-made tofu is delicious and soft.
Then In the demon's taste, tofu is no different from a dish left out for hundreds of years, and causes heavy food poisoning.
For Muzan , he can withstand the food made by human is very impressive, other demon have many side effects when eat man made food*

While he eating with family, a woman said :

"I heard you say about tomorrow , you will go with the doctor to study , right ?"

He replied: yes, mother ... I'm sure he mentioned it before he left , in one month , he will come to our house . What's wrong , mother?

She said : "nothing... It is a good thing that you study with him" .

Then she question : "but, have you learned the basics of how to treatment in the book that i gave you ?"

Muzan replied :"i already read all of it , mother. "

She smiled "I see ... you are done well , I will prepare something for you then you can go out with him tomorrow ."

"Mother , you is so good "

then , they laughed together in last night .

(Tokei no ibuki , dai 3 no keitai: Yakan)
breath of the clock , third form : night time

-0:20 Am-

In the forest, he practiced slashing while holding a log about 16 meters, every time he practiced to swing, it created quite strong wind.

"1788"

"1789"

"1790"

"1791"

"1792"

"1793"

"1794"

"1795"

"1796"

"1797"

"1798"

"1799"

"1800

some time later:

"3495..."

"3496..."

"3497..."

"3498..."

"3499..."

"3500... done"

" Huff... huff... , Giant log Swing is done , only breathing is left. "

-3:10 Am-

Then, He looked up at the sky, thinking :
"Tomorrow is the decisive day that he will come .This is the last day that i in this home ."

"Nah , it don't matter , i prepared everything for it "

He grip his hand and he swear:" in this life, i will do my best to protect him ."

In the river, he swam underwater to enjoy the beautiful scenery. After that , he started swimming up ,then he chilling in the middle of river.

"Huh ?"

He saw a creature approaching him. he thinks :

( it big ... ,i thinks it about 5 m, I wonder what creatures is this ?)

then he dives into the water to take a view . Suddenly, that creature started to rust towards muzan at a very fast speed .

( Sh*t , an crocodile)

That green crocodile rushing towards him and about to bite him

*Chomp*

"Hooooooo"

But Muzan was faster, he saw the crocodile's movement, he easily dodge it bite by swim to the left .

(Impressive...)

"Grrr" [Did the prey trying to escape form me ?] * Chomp * *Chomp*

Muzan then dodge the bites again and think :
(Although it's very fast, I'm sure it have been eat people, but it's quite slow.)

The crocodile continued bite him even though muzan dodged.
*Chomp* *Chomp* *Chomp*
Muzan continued to dodge with ease despite being underwater.

muzan started mocking it : " Oi! why are you so slow ? you should be faster than that ? you fat*ss :)) "

" Grrrrrr" [You ! You will pay for that ]

(Oh ! It angry.)

The crocodile started to get angry and swing with its tail toward him.

The moment the crocodile swings it tail towards Muzan with a distance of 5 cm. Muzan easily dodged and got in front of the crocodile, punching the crocodile in the face with his bare hands with speed of sound.

His punch is so strong that it creates a huge amount of water pressure and causes it stunned after the punch.

"How that , fat*ss ?"

(Oh,it not dead but...it stunned.)

He look at his arm and think:
( maybe I'm too strong? I only used 5% of my strength ...Otherwise This right is would be boring... )

(If it was weak then , Then i will double the threat of this crocodile...)

(Alright ! i will give it a chance by turn it into a demon )

It looked around, didn't see its prey and then it heard a laughing

"I'm on your head, you fat*ss"

Then he grip the crocodile mouth with his a hand, It tried to attack him in a rage, but it couldn't open its mouth . Basically , Muzan is too strong for it to handle.

" GRRRRR" [let me out!!]

the crocodile tries to struggle and uses it's death roll to make both Muzan and it spin

"Nice try ! you may be smarter than you look . But... Still not enough"

Muzan started transform his arm into a lance ,he stabbing the crocodile's back and pierced it. Then, he injected some of his blood into the crocodile's back. Then he kicked the crocodile's stomach causing the crocodile to retreat 10 meters away and spit it's blood.

(30 ml of my blood is enough... since it is strong , it won't be die easily . My blood could reach the rest of it cell to transform it)

(And thanks to other fishes, I can breathe underwater. Otherwise, I would have drowned long ago when I fought this crocodile.)

Muzan started swimming a little further to see how the crocodile transformed into a demon

(In A week ago, I turned two snakes into demon. When it turned a demon , the results is it impressived me so much . The snake that i pull some of my blood into it make them stronger and faster .)

(But... they have no match for me ,i killed them and ate two demonized snakes . I got its ability to sense heat and produce poison . I'm very sure that other than human , animal also affected by my blood .But does it also work at crocodile ? So...let find out ... )

The crocodile started to wake up from the kick. Suddenly, a strange phenomenon occurred , the crocodile began to scream in pain , its body began to change .

Its body begins to grow. It slowly got bigger, its claws and teeth became longer and sharper , it start to grow two horns in it's head . Most surprising , it roar so loud that many fish who close to it started to run away form them for no reason.

"It's so loud"
"Very , very loud . But wait... it got bigger??"

it began to grow two more eyes, two more limbs and some tentacles on its back. Its tail grows a large knife. Its skin started to hardened like an armored tank.

(Not my art , and Forget the eyes around it body , image it has a Large knife in this crocodile tail)

(Holy sh** ! this thing already a Dinosaur !!! It already over 4 time bigger than me !)

"Gotouge , is that you ?"
- No , that how scp 682 was born -

"ROARRRRRRRRRRRRRRRRRRRRRRRRR"

It started to roar , but it roared louder and longer than before . That cause a Mimi shockwave , it roar is so strong that some fishes near it was exploded when they hear the roar form two meters away. -Edit: crocodile use death roar-
-It very effective !-

In the blink of eye, it began to devour the exploding fishes at a insane speed.

(It's fast ... But still... lack something)

Then, the Crocodile looked at Muzan, licking his lips like it wanted to eat him.

Muzan read its negative emotions and started laughing :
"HAHAHAHAHA"

He taunt this crocodile :
"You want to devour me alive , didn't you ? Then , come here !"

*GRRRRR*[ i toying with you then kill you!]

The crocodile began to use its tail, swinging it at a terrifying speed. The swing that sent Muzan , a powerful young demon was blown away and crashed into a nearby rock . It creates a great pressure on the river, even affected the water in surface.

However, being a strong-willed demon, Muzan survived the crocodile's tail swing. Not only that, muzan is perfectly fine except his right arm is already injured . Then he look at his injured arm.

(it's been long time...)

In the blink of an eye, his right arm was fully restored

(That I was damaged by a creatures )

He got up , then jumped off the rock

"You are the first one who can hurt me!"

(I will use my 40%)

then he swam, throw a punch on that crocodile head.
With that punch,it pierces its head even though it has scales ,and the punch is strong enough that cause a shockwave compared to that crocodile tail swing , turn the demon Crocodile head into a mess , some of it teeths is broken by his punch.

" How that ? "

It was stunned ! but in a few seconds , its head was fully recovered quickly , its teeth started to grow back .

(Great ! it has the ability to regenerate very quickly, but still not enough. I still have a chance to kill a sarcosaurus size crocodile , but not easy in this time.)

(So...I have to kill it before it cause problems.)

*Growl* [You will be pay for what you have done with me!!]

It start to roar again , it looks at Muzan with an angry face

But Muzan is calm and looking at the Crocodile with a bloodthirsty expression:

"The hunt has just begun ! Tonight , you will be my meal ! "

*Grrrrrrrrr * *Gaaaaaaaaaaaaaaaaaa*

" Bring it on !"

___________________________________________

Fact : Muzan can go through hell training because he had strong will in his previous life, unlike canon Muzan . These are two thing for him to do that .First, find someone who can match him, and find a worthy opponent that could hurt him , Second ,want to get rid of the loop in the original story and want to surpass Yoriichi in term of strength and speed.

-you should wait for Yoriichi to born in 600 years more or find some Yokai in Japanese Mythology-

Muzan Kibutsuji (Post Hell training , Heian era)

Race : the first demon

Regen : High - Mid

Tier : Form 9-A( Hand demon level , small building level) to 8-B (Hashira level , city block level) , Higher with blood art

Heights : form 1m69 to 1m85 (post Hell training)
-for who don't khow , canon Muzan is 1m79-

Attack Potency: Form 9-A ( small building level ) to 8-B ( City block level) , could broke more than 3 meter rock with a punch , cut the rock like butter . Compare with Demon-crocodile with 40% of his power

Durability: at least city block level ( could tank a swing of demon-Crocodile

Speed: At least Massively Hypersonic

Ability :
*Enhanced Senses.
*Body control :expect-level.
*poison creation ( snakes be like ).
*Heat sense .
*Blood Creation: expect level.
*Self-Sustenance (Type 3. Was stated that he doesn't need sleep, which caused him to resent restrictions on daytime activities).

*Battle Spirit (Overwhelming Aura that causes the opponent fear and paralysis with them feeling the air getting heavier, and can even cause internal bleeding and external.
Immortality (Types 1, 2, 3).

*Biological Deconstruction (By injecting his blood into animals and humans he causes them rapid mutation that results in cellular destruction and quick melting and vaporization of their body. Muzan weaponizes his blood by infusing it with his physical attacks, making a single scratch deadly. Demons can only survive adapting to a small amount of Muzan's blood at a time).

Self-Sustenance (Type 3. Was stated that he doesn't need sleep, which caused him to resent restrictions on daytime activities)

Absorption (Can absorb people and objects by phasing them into his body, which would be able to permanently kill demons despite their regeneration and immortality. This allows him to acquire some of the abilities of those he absorbed)

Muzan to crocodile:
How that ? Fat*ss !

Muzan to demonized crocodile :
The hunt has just begun ! Tonight , you will be my meal !

Weakness : The sun will destroy him , Hold back a lot . Rarely use blood art ( not really...) , he likely to use his pure strength , because he think this is the best way to get stronger.

Fat*ss Crocodile :))
Normal:

Demonized:

Race : crocodile ---> Demon Crocodile

Tier : form 9-B in normal form to ?? In demon form , higher with death roll

Regen : Mid-Mid

Size : 5 meter in normal form , 9 meter in demon form

Attack Potency :9-B in normal form(wall level ) to ?? , higher In demon form could somewhat hurt Muzan

Durability : wall-level in normal form
?? In demon form is ?? Level , higher ( can tank a not-fully 5% punch and a kick form Muzan, in Demon form , he can tank 40% of his blow power)

Weakness : The sun is deadly lazors , ??

Crocodile to Muzan :
" Growl "
"GRRRRRRR"

Demon Crocodile to Muzan :
*Grrrrrrrrr * *Gaaaaaaaaaaaaaaaaaa*

___________________________________________
Write : May 13.
Finished : May 19.
Published : May 19.
Thanks for reading.