Meanwhile back at the Mugen Train and when everyone is experiencing their dreams, Nezuko climbs out of her box. She has used all her lives in Candy Crush and she got bored at playing Subway Surfers. Since it's now night, she can see her brother and her future wife. Nezuko walks over to the seats where you and Tanjiro are located. As she walks, she notices that every single passenger is asleep.

Nezuko walks up to Tanjiro first to get her daily head pats.

She tilts her head wondering why there's a rope around his wrist that is tied to a child next to him. He is also laying against Kanao who also has a rope tied around her wrist. Nezuko spots you with your head laying on Rengoku's lap. She would've gotten jealous if it weren't with the fact you're hugging a small boy in your arms. Like Tanjiro and Kanao, you also have a rope tied around your wrist. And the boy you're hugging is the one attached to you.

A small gasp is suddenly heard and Nezuko looks up to see Rengoku getting up and strangling a girl. She realizes only the Demon Slayers have their wrists tied up.

"I gotta...wake up." Tanjiro mumbled. Nezuko grabs Tanjiro's hand to give herself a head pat. But his hand goes limp, afterwards. This makes her angry that she headbutts him as revenge. A sudden wave of pain courses through her body. Then her forehead splits open and blood comes pouring out. Nezuko begins to cry in pain and for some reason she headbutts him again. This time she does it with her Demon Blood Art. "I have to wake up." Tanjiro whispered.

Nezuko looks worriedly at him and then she looks over at you. Your body moves as you tightly embrace the boy. "Everything...will be...alright." You groaned. Nezuko lightly shakes your body, but you wouldn't wake up. She shakes your body a little harder, but to no avail.

"Mmmm. Hmmm!" Nezuko huffs.

"Ahhhrrggh!" Tanjiro suddenly screams. His body shots up as he's gasping for air. He grabs his throat to see if it's still bloody up from the cut he just gave himself. "It's alright. I'm alive." He gasped. He heard moaning from behind him and he turned around to see his sister. "Nezuko! You okay?" Nezuko covers her forehead in response. "I'm so glad!" He exclaimed. He looks around and sees everyone's still asleep. "(Y/N) chan. Kanao. Zenitsu. Inosuke. Rengoku san." Tanjiro also noticed the extra kids that are next to them. Not to mention Rengoku is still strangling that girl. Then he noticed that only him and the Slayers are the only one with ropes tied on. He sniffs his rope and detects a demon's scent in it. He smells it on everyone's ropes. "Nezuko, can you burn their ropes?" Tanjiro asked.

Nezuko nodded and went on to burn your rope first. Then she proceeded to burn the others as well. You begin to move around before fluttering your eyes open. Tanjiro and Nezuko smile when they see you finally waking up.

"What the..? What's happening-" You're suddenly tackled by Nezuko who gives you a hug. She nuzzles her head against your chest.

"Mmmm!" Nezuko cooed.

You warmly smiled back at her and rubbed the top of her head. "It's nice to see you too, Nezi." You chuckled. You looked up and saw Tanjiro still smiling at you both. Now you remember everything. Enmu puts everyone in a dream and you just convinced Yuji to not destroy your Spiritual Core. "Tanjiro, there's a demon on this train!" You revealed.

"I know. Whoever that demon is must have used their blood as the ink for the ticket. Then when our tickets got punched, it activated their Blood Art." Tanjiro explained.

"There's more. This Demon is one of the Twelve Kizukis." You said.

"How do you know?"

You gave him a smirk as you pointed at your chest. "I haven't forgotten the promise, Tanjiro. I'll tell you everything if no one dies today." You reminded him.

"Right!" He nodded.

"Mmmm? Mmmm!" Nezuko panicked. You looked down to see Nezuko shaking Kanao's body. But she isn't waking up. In fact neither of your friends are waking up. Even with their ropes burning off, they're still sleeping.

"Oh no! Kanao! Zenitsu! Inosuke! Rengoku san!" Tanjiro worriedly exclaimed. "Why aren't they waking up?!"

"The bigger question is...why did I wake up?" You questioned. You look at Yuji who is still asleep. Was it because he let me go? Or... An image of Leo came to your mind. Did he help me wake me up too?

"Rengoku san -"

"Look out!" You warned him. The girl that was tied up with Rengoku freed herself and aimed her stake at Tanjiro. He moves out of the way in time, pulling Nezuko with him. A girl with braided hair looks angrily at him.

"What are you-"

"You're all interfering! Now that you people are here, we won't get any happy dreams!" She yelled.

One by one, the children get up and have their eyes on you three. They also have their stakes gripping tightly on their hands. Even Yuji gets up, but he only stares sadly at you. "Tanjiro, these kids are also victims of this demon. So please...go easy on them." You said. You also looked at Yuji and discreetly shook your head at him. You don't want him to get knocked out by Tanjiro.

The braided hair girl turns to the boy that was tied up with Tanjiro and then at Yuji. "What are you two doing?! Get off your asses, and help us out! I don't care if you have tuberculosis! Or the fact you have vertigo! If you two don't do your job, I'll go tell him, and then he won't show you any dreams!" She shouted.

You gasped when you heard that Yuji has vertigo. Poor boy, not only he lost his mother, but to have vertigo in this day and age. Enmu will pay for taking advantage of these kids. Yuji grips his stake while his whole body trembles. Then he slowly drops his stake. Oh thank God.

"I'm sorry, but I have no choice but to fight back." Tanjiro apologized. In a blink of an eye, he knocks the four kids by karate chopping their necks. Yuji whimpers in fear, thinking he's about to be next. You pulled the child to a side hug and gently ruffle his brown hair. Tanjiro looks down at the unconscious children with remorse. "You just wanted a happy dream, didn't you? I know. Because I wanted that as well. I wish that was a bad dream." He confessed.

You bit your lip in anger that you also fell victim to Enmu's trap. "You're not the only one, Tanjiro. I dreamt every single one of my family is alive. My brother is human and none of this ever happened. I had no guilt in my dream. I knew it was all fake, but I didn't want to wake up. So in a way, I understand how these kids feel." You agreed.

"But you did wake up, (Y/N) chan. You woke up because you knew it was the right thing to do." Tanjiro smiled. He then turns to the sick boy. "Are you alright?"

"I am now. Be careful." The boy smiled back.

"Thanks!" Tanjiro nodded.

You grabbed Yuji's hand and gently led him to the sick boy. "You two stick together. It's going to get really dangerous." You said.

"Understood!" They nodded.

"Let's go, (Y/N) chan, Nezuko!" Tanjiro exclaimed.

"Right behind you!" You responded. You pretended to run, but quickly went back to the two boys. They look confused on why you came back. You bend down to their levels and grab their heads to face you. "Alright, listen to me, you two. In less than an hour the train is going to derail. I'm going to do everything in my power to prevent that from happening. But in case I fail, you need to be ready to embrace yourselves." You warned them.

"But miss, how do you know that?" Yuji asked.

"Just trust me, okay?" You said.

"We trust you." The boy said.

You nodded at them and ran to the next car to where Tanjiro was.

"(Y/N) chan, where were you?"

"Never mind that. Tanjiro, the demon is Lower Moon 1. And he's on top of the train in the first car."

"I would ask how do you know that, but you promised me you'll tell me after the mission."

"I know you can handle a part of him alone, so Nezuko and I will try to wake the others up to help you."

"Okay, I trust you, (Y/N) chan."

"Good luck, Tanjiro."

"You too."

Tanjiro runs ahead to face Enmu while you grab Nezuko's hand and lead her back to where the others are at. Wait, what does she mean by 'a part of him', he wondered.

You lead her to Inosuke, since you know he's the first to wake up. "Okay Nezuko, remember how you burn the ropes? I need you to burn their bodies." You instructed. This makes Nezuko tilt her head at you.

"Hmmm?" Nezuko hums.

"Trust me on this. Your blood will wake them up." You explained. Nezuko nodded and proceeded to burn Inosuke. Pink flames engulfed his body before putting itself out. But he still doesn't wake up. "Come on, Inosuke." You shake him. Nezuko goes over to Zenitsu and burns him as well. Then she went over to Kanao and lastly Rengoku. You placed your forehead against the boar mask and closed your eyes. "Listen up, you feral child! This is your strongest underling speaking! I need you to wake up and help us protect the civilians and kill the demon!" You demanded.

Inosuke's body shot up and landed in a dramatic pose. "Never fear, Underling! Lord Inosuke is here! I'm about to end this demon's career!" Inosuke exclaimed.

"Inosuke...I'm so proud of you." You whispered. He's finally picking up on your lessons. "Anyway, we have to protect the civilians."

"From what?"

"From the demon that's about to attack them any second now."

"(Y/N)! Rengoku! Kanao! Zenitsu! Inosuke!" Tanjiro suddenly shouted from the roof. "I really need your help! Please wake up! I'm begging you! Nezuko! I'm trusting you to look after the other passengers!"

"Was that Gamaboko?" Inosuke muttered.

"It is. Inosuke, this entire train is a demon. Any second now the demon's flesh is about to attack us all. You need to help Tanjiro locate the demon's head while protecting the passengers." You explained.

On cue, the walls and windows of the train begin to transform into giant piles of flesh.

"This train is a demon!? I knew it! Leave it all to me!" Inosuke nodded. He jumps up to the ceiling and begins to throw punches at it. He managed to punch through it and jumped up. "Alright, listen up, my minions! Follow me! Keep those eyes open..." Tanjiro smiles at the sight of the boar. "and keep them forward! Cause Lord Inosuke is coming though!" He jumps back inside the train and sees you gripping the hilt of your sword. Just as you're about to swing your sword, Inosuke has his blades ready. "Beast Breathing, Fifth Fang: Crazy Cutting!" He spins his body around and cuts the flesh that was about to eat the passengers. "Lord Inosuke Hashira, I'm coming through!"

You sweat dropped witnessing all of this. That was a bit dramatic. You quickly shook your head and turned to face Nezuko. "Nezuko, protect everyone in this car! I'm going to the next one to do the same thing!" You told her.

"Hmmm!" She nodded.

You took out running and reached your hand to the door knob. As your hand almost touched the knob, Enmu's flesh quickly covered the entire door. You rapidly swing your sword, cutting both the flesh and door to tiny pieces. Upon entering the car, you gasped when you saw tentacles made out of flesh about to eat the sleeping passengers. "Oh hell no! What kind of hentai bull shit is this!?" You shouted.

But this is no time to complain. These passengers are in danger and you have to save them. You quickly run to the middle of the car and quickly hook the chain onto your sword.

Dance Breathing, Sixth Form: Salsa!

Standing in one place you spin your sword around in a circle. The blade cuts the tentacles that were getting close to the passengers in one swoop. The flesh that was cut up quickly turned into ashes. But you couldn't celebrate just yet. More of the flesh tentacles regrew and some of them headed towards you. The passengers take priority so you once again perform the same move again. Your sword cuts the tentacles and then you quickly jump up. The tentacles that were heading towards you crashed into one another when you jumped. You brought your knees close to your chest while still up in the air. You spin your sword below you to make a smaller circle. The tentacles got sliced as you landed on your feet. You backflip away from an incoming attack at the nick of time. Your eyes widen when you see multiple tentacles going for every single passenger.

Dance Breathing, Seventh Form: Zumba!

You spin your sword around at a rapid pace to make it look like a circular saw. You begin to jump around to avoid the tentacles that are trying to eat you while swinging your blade around to cut the ones that are trying to eat the passengers. The innocent passengers are your only focus. If you can dice the flesh into millions of pieces, that should take longer for Enmu to regenerate. So that's exactly what you did. Using your improved Concentration Breathing, your arms and body spin like it never spin before at a rapid pace. To the naked eye, all one could see is a blur of red and a circular rainbow.

Black smoke replaces the flesh you just cut down. I did it! I protected the passengers from my car. Now I just have to make sure Nezuko and the others are protecting their cars as well, and I can go to the coal room to cut Enmu's head off. If I do that then the train might not derail. As you were thinking that, you failed to notice one big ass tentacle creeping up behind you. Seeing the tall shadow makes you turn around. There was no time for you to swing your sword. The ugly flesh lunges at you-

That's when you feel the entire compartment jump up from the tracks. You took the opportunity to cut the giant tentacle down. If the compartment jumped up, then that must mean Rengoku is awake and stunted Enmu just now. So where is he?

"Young (L/N) san!" Rengoku exclaimed. His booming voice made you screeched in horror before blushing at him.

"R-Rengoku san...Am I so glad to see you!" You exclaimed.

"Likewise, dancer! I see you did an amazing job protecting these humans in your car! You have my respect!" Rengoku smiled.

Your blushed deepened into a strawberry color before tearing up. "You really mean that? From the bottom of your heart?" You asked, trying to hold back your tears. Rengoku chuckled and gently wiped your tears away.

"I never kid! Anyway I'm here to tell you I'm going to protect the four remaining cars. Kanao, Nezuko, and the yellow haired boy will protect the other four. You are to join Young Kamado and the boar in finding the head. The Master has told me you have a special skill in knowing what to do and predicting what's about to happen. I trust that you're successful in aiding those two boys!" Rengoku instructed.

You have your month gape open upon hearing that. First of all, the dialogue has changed just a bit. In the original story, Rengoku was protecting five cars, not four. But then again you and Kanao weren't in this arc. Secondly, Kaguya knows who you really are? No..You don't think so. He probably believes you have the same gift of foresight as him. If only they knew the truth about you.

"I know where the demon's head is located! You can count on me to cut it!" You promised. And I won't let you die today!

"That's what I want to hear!" He smirks. "Now off you go, my Tsuguko!"

You bowed at him before running off. The car you enter is currently being protected by Kanao. She looks so graceful cutting down those disgusting tentacles. You both took a quick glance at each other and nodded.

"Be careful!" Kanao exclaimed. You responded by winking at her.

The next car you enter has Zenitsu and Nezuko in it. As if he senses your presence, Zenitsu jumps onto the walls of the car and lands next to you. "Keep going, (Y/N) chan. I will protect you." He spoke.

"Mmmm hmmm!" Nezuko nodded in agreement.

Both of them begin to shred down the flesh to give you space to keep on running. You're forever indebted to your friends. If it weren't for them, this would take you a while to get to the roof.

You opened the door and stepped onto the middle. The harsh winds blow your hair and pin back. You put your hands onto the roof for support, but quickly pull them back when you feel your fingers touching the flesh.

"Ew! No way am I touching Enmu's gross flesh! Fuck that!" You gagged while squirming around. You wiped your fingers onto your haori before regaining your composure. Taking a deep breath, you focus all your energy onto your legs and jump up. Your body is up in the air and you flip your body over to land perfectly on the roof.

"(Y/N) chan!"

You stopped running and looked down to see Tanjiro's head sticking out the window. "Did Rengoku san, sent you!?" You shouted.

"He did! He told me to assist you and Inosuke in finding the head!" Tanjiro replied.

"I know where it is! It's located in the engine room near the front!" You revealed.

"That's my number one underling!" Inosuke exclaimed. You turned around to see Inosuke running towards the engine room. "I sense that's where the demon is hiding! Now follow me!"

You didn't need to be told twice. You took off running with your hands gripping the hilt of your sword. The most important thing is to prevent Tanjiro from getting stabbed by the conductor. But if you do that, he may not know about the Recovery Breathing. It's okay, he'll learn about that later. Just two things that mattered, prevent Tanjiro from getting stabbed and prevent the train from getting derailed.

Upon reaching the engine room, more tentacles sprout out and attack Inosuke. They grabbed his head and limbs to keep him immobilized. Not on my watch! Dance Breathing, First Form: Ballet! You spin your body around to free Inosuke from the tentacles. The impact was so strong that you managed to cut down the walls surrounding the room.

An eerie piercing screech echoes throughout the train. You have a deadpan look while hearing it. Meh, Rengoku's 'umais' is louder than that.

Tanjiro soons entered the engine room. "Are you two alright?" He asked.

"We're fine. I managed to save Inosuke in time." You answered. An irk mark appears on Inosuke's head.

"It's not like you came to my rescue, okay!" Inosuke yells.

You rolled your eyes and used your sword to point below you. "You guys, the head is under here! We have to cut his head now!"

"Didn't order me around! I'm the leader, remember?!" Inosuke roars.

"Understood!" Tanjiro exclaimed.

Inosuke jumps high in the air with his twin blades raised. You weren't looking at your friend, instead you kept your eyes on the driver. You aren't gonna let him stab Tanjiro. "This is Beast Breathing, Second Fang: Slice!" Inosuke yells out. He sent out two slices towards the compartment that is hiding Enmu's head. The metal floor breaks to reveal flesh and a giant spine under it.

"This is...his neck bone!" Tanjiro stated. You and Tanjiro wasted no time and raised your swords up. Water Breathing, Eighth Form: Waterfall Basin; He summoned.

Dance Breathing, Third From: Disco!

The two of you slashed your blades at the spine, but a wall of flesh deflected your blades. That action made you stumble back. Damn it! Even with my help, it wasn't enough to cut his head off! You remember what happens next.

"Everyone, jump!" You warned them. More tentacles came out and tried to attack them. Tanjiro grabbed the driver and jumped to avoid the tentacles. You also jumped and landed next to Tanjiro in the car that contained coal. Inosuke landed on the other side where the front is at. The flesh expanded