On the top of the train,

There was a someone standing,this was a demon named Enmu.

He had the ability to put anyone to sleep then destroy their consciousness.

But after Muzan injected him with more of his blood,he was currently stronger than ever before.

Enmu took the form of an incredibly pale young man with ringed blue eyes that tilt sharply down towards the sides of his face, the left one of which with the kanji for "Lower Rank One" etched into its iris and a horizontal slit on his right instead of a pupil.

Enmu wore a long, black button-up coat that arched upwards on either side of his legs so that only the two tails in front and behind fall down below his knees, and a white dress shirt, the cuffs of which appear over those of his coat. He also wore a pair of pinstriped pale gray pants and plain shoes of a similar color.

"All humans are the same-with such fragile hewrts and bodies" He thought.

Currently,those demon slayers were asleep as their consciousness were being invaded by his huamn minions.

Yes,he had actuall manipulated living,breathing humans into killing people.

"Ah,as soon as I kill them all,I'll become an upper moon!" He said in an estatic voice.

...............

Inside the train,

A black coloured youth was standing,looking at the people he boarded this train with.

Thid youth was Harada.

He had come out of the dream and so had the one who invaded his consciousness.

He had knocked that guy unconscious.

Currently,he was thinking about something,

"Hm,should I just cut the ropes...no,that may be dangerous.I think I should ask Nezuko for help"

He thought as he opened the box in which Nezuko was sleeping.

"Nezuko,wake up" He said gently.

"Mhmm"Nezuko woke up after a few seconds.

"Burn these ropes with your blood okay?" He said to Nezuko.

The next moment,Nezuko bit her finger,let out some blood and let it drop on the ropes.

As soon as the ropes came in contact with her blood,they started burning.

After a few minutes,all of them were awake and I had already knocked out the people who invaded their dreams.

"Harada,there are around 200 people in this train,and this train id made up of 8 cars,I'll kill all the demons in the last 5,Zenitsu,Inosuke, and Nezuko will kill the demons in the remaining 3 cars while you nad Tanjiro kill all the demons on the roof,okay" Rengoku-san said quickly as soon as he analysed the entire situation.

"Okay" we said as we got on the roof of the train.

There we saw a demon,it had written lower moon 1 on in the place of his right pupil.

We heard sounds of demons being slashed from the cars below us as we prepared ourselves for a tough fight.

.............

"I can never forget this demon,he was the main antagonist of the infinity train arc,I know all his tactics and abilities and due to the constant concentration breathing,I don't think I can't defeat this demon" Harada thought as he analysed the situation.

"Ah,you are the one with the red eyes,if I kill you then my lord will reward me handsomely!"

The demon said as he looked at Tanjiro.

"You know,I love to show you humans your dream coming true and then turning them into the worst nightma-"

"I don't care!" I said interrupting the demon as I used all my power to jump at him and make a strike.

Tanjiro,followed me and attacked the demon.

"Oh,can't you let me talk first?" The demon asked while being remaining nonchalant.

Enmu,the demon,raised his arm,facing the back of his hand towards us.

"Compelling hypnotic whisper" Enmu said softly.

All of a sudden,Tanjiro lost all his focus but Harada had closed his eyes "This is the moment this idiot of a demon let's his guard down" He thought as he made a strike purely based on his instincts.

This strike had no form,but it had the weight of a boulder and momentum of a tsunami in it.

"Die demon" I said as I made the slash and sliced Enmu's head off.

His head flew to far away from his original body,but stopped in mid-air as he started saying "I have completly infected this train,I am everywhere in this train,you can't kill me,now can you?" He asked me mockingly as I made another jump to pierce it's head the exact moment.

Before I could reach Enmu,a massive wall of flesh and eyes surrounded him like a protective layer and my sword couldn't pierce though it.

As soon as Tanjiro regained his focus,he was perplexed and angry.

"Don't you dare insult my family you damn demon!" tanjiro shouted at the massive flesh wall.

As soon as he shouted,the roof beneath us crumbled and became tentacle-like creatures made of flesh and eyes.

"Ah shit,I won't use most of my water breath forms in this narrow place"Tanjiro thought as he heard a noise.

Noise of someone shouting vigorously while making their way here.

It was without a doubt,Inosuke.

"Oi,monjiro,you wouldn't be able to survive without me here hahaha" Inosuke shouted as he started slicing the tentacle like creatures.

"He isn't being affected because he is wearing a mask,that's a good thing."I thought as I got ready for striking the tentacle-like creature.

Suddenly,

I found myself in a room,

In the room,there was a candle buring,

The doors were closed and there was someone laying on the bed.

It was Shinobu,

She wasn't wearing anything and just covering her body with a blanket,her face my flushed red with embarrassment as she said "Dear,wh-why are you staring at me like that! Didn't you say yourself that you wanted to do it tonight!"

"Ah!" I exclaimed as I felt something rising in my lower area.

"Sorry to disappoint you but not tonight" I said with much regret as I sliced my neck with my balde.

Then,

I found myself standing around the tentacle like creature.

"Konpajiro,sunojiro,what were you two doing all this time,do you know how much effort I put in to keep you safe from these tentacles!!" Inosuke shouted in irritation.

"It's this demon's blood demon art" I said as I and Tanjiro rushed forward to slice the tentacles to pieces.

"Water's breath:Tenth form" I shouted as I rotated my body to get as much momentum as I could and

*Shiii*

In a blink of an eyes,I,Tanjiro and Inosuke had sliced the tentacles into pieces.

But after some moments,the tentacles started to regrow.

"Ah yes,this entire train had been infected my Enmu,thus it is basically Enmu's body"

"Tanjiro,Inosuke,slice the engine into pieces" I shouted as I used all my power to make a powerful slash at the main car of the train.

"Aha! I was right!" I shouted as I saw that the train's engine's part resembled bones.

Tanjiro and Inosuke were connstantly striking at the Tentacles,not allowing them to reach me while I focused all my attention on the engine.

"Even though Enmu had become a part of this train and could manifest anywhere on this train,currently,the engine part,it's neck is the easiest to cut" I thought as I saw the opening thread.

Then with all my strength,I made one,final strike.

*clang*

The sound of a sword cutting steel could be heard.

With that one strike,Enmu had now been decapitated.

The sounds of him,the demon,shrieking could be heard.

He used his remaining power to unleash his ingrowths to attempt to consume all the 200 passengers onboard presumably to help accelerate his regeneration in order for him to reattach his severed head. They were stopped by Rengoku-san,Nezuko and Zenitsu.

With that Enmu was completly dead.

All of a sudden,the entire train shook as it derailed from the track.

To be continued.....