His Weakness (Kibutsuji Muzan X Reader)

Chapter 13

Previously on Chapter 12

"What are you three waiting for? Sit down" I said. They snap out of their dazes and finally settle down. Kamado decides to take a seat next to Rengoku, while I sit across from them. I move closer towards the window and take a look outside. I wonder what awaits us in this mission.

-Trapped In Illusion-

Y/N P.O.V

I watch as the scenery went by as we starts to move. I hear Kamado asking Rengoku about a technique called Hinokami Kagura. I turn my head to look at him.

"Hinokami Kagura, huh?" I said. Kamado turn his head to look at me. I cross my arms across my chest. "I learnt a few things about that Breathing technique. Father left me a notebook about it. He gave it to Father Ubuyashiki. But the information isn't complete. The only thing I know is that it's the first Breathing Technique to ever be created. My biological father's Breathing Technique, the Breath of Phoenix is the direct alteration of that" I said.

"Is there anything else you know about the Hinokami Kagura, L/N-San?" He asked. I shake my head to let him know I didn't. He let out a sigh at my response. I smile apologetically at him. "It's fine, L/N-San. I hope I'd be able to figure out something along the way" he said.

I heard footsteps coming closer towards us. I turn my head to look at the direction to see the conductor. He starts asking for tickets to punch holes in them. I stare at him as he punch a hole in mine. Something doesn't feel right with this man. He looks pale like he hadn't been getting any sleep.

The room in the compartment flickers. I instantly become alerted as I feel a faint presence of a demon. I grab my nichirin from inside my haori. As the light turns back on, a large demon is present. I stand up to kill it, but a hand stops me. I turn my head to see Rengoku.

"I'll handle this demon, Y/N-Sama. Remember, my job isn't only to eliminate demons in this mission. But it is also to protect you" he said. I let a sigh and decided to stand back. Rengoku turn his attention to the demon. I watch as he swiftly ends the demon. But I still feel the presence of a demon, which means there's another one. Rengoku quickly kill off the other one as well. He didn't even give me a chance to fight.

Once the situation had calmed down. Everyone else had fallen asleep. I lean my head against the window as I start to feel drowsy. My eyes gaze at the scenery passing by, until they flutter shut as I slowly drift off to sleep.

Dream

I slowly open my eyes. I furrowed my eyebrows in confusion at the unfamiliar surroundings. No, I do know this place. I take a look around, realizing it's the Infinity Castle. But I'm suppose to be inside the train for a mission with Rengoku. So, how did I get here? Did Muzan captured me again?

I hear a gentle voice behind me. I turn my head to see him. He walks over to me and kneels down. I try to back away but he had already pulled me into his embrace. I flinch at his action. I try to pull away but he only tighten his grip, burying his face into the crook of my neck.

"You're finally awake, Y/N. I was getting so worried" he said. I furrowed my eyebrows in confusion. Finally awake? Had I been dreaming these whole time? The train... the demons. It's all just a dream?

Muzan pulls away from me. He gently cups my cheeks. His face is close with mine, and I can feel his breath on my skin. "Are you feeling okay? Do you still feel sick?" He asked. I lightly shake my head as I just stare at him with a confused gaze. Still wondering if I was just dreaming.

I flinch when I feel a hand on my cheek, snapping me out of my daze. I turn to look at Muzan. "Are you sure you're okay, dear?" He asked. I just nod my head lightly. He let out a sigh which sounded to be relieved. "Thank goodness" he whispered in a hushed tone.

"Why am I here?" I asked, with my chin lightly resting on his shoulder. He pulls away to look at me. "Haven't I already left this place?" I asked. He furrowed his eyebrows at me.

"What are you talking about, dear? No you haven't. You've been here these whole time... we've been happily married for years" he said. My eyes widen slightly at what he said. Did he just said we're married? Me? I'm married... to Muzan?

"Y/N. Are you sure you're okay?" He asked again. I just nod my head. He just hum softly and nod his head. He looks like he didn't believe me. "Maybe you just need to rest some more" he said. I just nod my head at what he said. I lift my hands to see they're still normal. Which means I'm still a human. What's going on though? Why do I feel like this isn't real? 

A While Later

One of Muzan's Upper Moon demons came by to drop some food for me to eat. Muzan stays next to me as he accompanied me as I eat the food. He's acting as if he's afraid to leave my side. It's like he's worried I might collapse when he's not next to me. For some reason, that made me feel happy. To know that he cares for me.

Once the food is done. Muzan called out the same Upper Moon demon to take away the tray. I yelped in surprise when he suddenly pulls me to sit on his lap. He pulls me close until my head is rested against his chest as I sit sideways. Muzan starts to play with my hair, making me close my eyes as I feel calm to be in his arms.

"I love you, Y/N..." he said. I pull away to look at him. He move his hand to cup my cheek. His thumb gently caressing my s/c skin. "Don't ever leave me, okay?" He said. I just lean into his touch. He leans in, gently placing his lips against mine. I close my eyes, kissing him back.

***

Muzan had left saying he has something to do. So I'm left all alone in the room we're sharing. I stare at the mirror in front of me as I comb my hair.

"Wake up!!" A flash of image of myself appears in the mirror. My eyes widen as I drop my comb. The 'me' in the mirror is wearing a different attire, it's my outfit when I'm a Demon Slayer. "This is just an illusion! You have to wake up!!" My reflection yelled, desperately trying to get me to wake up. I close my eyes as a flash of image appears in my head. I clutch onto my head. That's right... this is just a dream. It's just an illusion. I've got to wake up!!

I turn my head, spotting a small knife behind me. I quickly grab it. The same time as the door slides open to reveal Muzan. I clutch the knife in my hand as Muzan stare at me.

"Y/N... what are you doing with that knife? You know you're not suppose to hold anything sharp" he said. He walks one step closer to me with his hand outstretched. I quickly back away from him. "Don't be reckless, okay? Now, the knife... hand it over" he said. I shake my head and turn the blade to face me. The only way I know to wake up from a dream is if I die.

"I'm sorry, Muzan... but this isn't real. I've got to go back to the real world" I said. His eyes widen at what I said. I smile softly at him. "Thank you for being kind and loving towards me..." I said. I hear his scream as I thrust the knife right into my neck.

End of Dream

I gasp awake as I stare wide-eyed around the area. There is a red moving flesh covering the entire train. The sight makes my stomach feels queasy. I shake my head and shut my eyes.

Now isn't the time to feel grossed out. I have faced situations that are much worse than this. I've got to focus on eliminating the demon. But my mind can't seem to stop thinking of one thing, or rather... of someone.

*to be continued*