A/n: Hello! So this is my first Kimetsu No Yaiba Fanfiction. So before you start reading this book. I just want to remind you that some part of this book might spoil you. If you haven't reading the manga then don't read this book. It will spoil you very light. So some things to clear up;

First, the whole setting of this book is modern Tokyo, Japan but it might transfer back where the demons exists.

Second, the italic part of this book is a flashback. But don't worry I will give another authors note on the chapters that has a flashback.

Third, English is not my first language. So please do expect lots of mistakes.

Disclaimer: I do not own any characters if Demon Slayer: Kimetsu No Yaiba; they belong to Koyoharu Gotoge. This is a work of fiction. Name, characters, business, places, events and incidents are either the product of the author's imagination or used in a fictitious manner. Any resemblance to actual persons, living or dead, or actual events is purely coincidental.

Khiegilsan 

"WHAT are you doing here, so far from the rest of the celebrations?" I said to a man sitting under the tree as he silently watched the fireworks display. I can't see clearly his face but I saw him move his head on my direction. My eyes instantly frowned when I saw what he was holding, "Wow, you're actually drinking tonight" I giggle, my laugh sounds honeyed and dizzy as I stumble a bit on the gravel of the garden.

His hand catches me at my waist before I falls, "You seem pretty drunk yourself, Shinobu" the way my name leaves his lips sounds so sexy.

"Mmm, what if I am?" I laughs, my eyes filled with dreaminess as I gazes at him with clear intent. My body melts against his like snow in the sun, "It's the New Year's Celebration, and we deserve a holiday after the whole year work"

I throw my arms around his shoulder as I lean closer to him "Don't you think so?"

"Shinobu," his voice is low, a warning. But it's a feeble warning, a hypocritical warning, I felt his arms are already snaking around my waist, slow and sinuous like the water he channels.

"I like it when you call me that," I sighs, my hips moving forward to press gently against his body. He nearly jumps out of his skin when I grinds up against him, fluidly, teasingly.

"Shinobu..." it's a strangled groan that leaves his lips. It's a sound he's almost ashamed of.

I stops "Do you not want this?" I look at him intently "We can stop—"

He grabs me, seizes my small waist in his hands as I felt him pull me closer. I flies forward and my hand come to brace myself on his chest. He's only wearing a thin yukata to keep out the cold. I feel the heat on his palm that gently massaging my back making me shiver down my spine.

I open my mouth to say something but he lean closer and took my lips with his. It's a deep, fierce and urgent kiss. It's a rather sloppy one as well. His hand slowly and sensually roamed around my body--

I groan when I heard that familiar and annoying sound that echoed on my room. I tried to focus on my dream but it was impossible for me since I'm already distracted on that sound. A frustrated groan escape my lips before I open my eyes. My eyes instantly look at the source of that sound and I almost throw it out.

Damn!

I inhale sharply before I accept the call, gently massaging my temple "Yes, Doctor Shinobu Kocho of Oyabashi Corporation" I said.

"I'm sure that I gave you a warning. I told you to get stop doing the 'wisteria' medicine. And that I'd kill you if you didn't—"

"Do you have any idea what time it is, you punk?" I said smiling even though the caller can't see me "Threatening me is fine and all, but you should let me get my sleep, at least! Things like this are only scary to hear when you're able – minded!" a frustrated groan escaped my lips "Ugh, this is so frustrating" I almost yell. Thankfully, I mastered how to control my emotions.

Right. People who can't control their emotions are childish. And I'm not like them.

"Don't be too surprise to see what from this point on because you brought it upon yourself. I'll ruin your life—" I didn't let the caller finished his words and instantly cut off his call.

I close my eyes as I tried to go back on my sleep on continue that dream of mine – but I wasn't lucky. I inhale sharply before I glare my phone "What kind of bastard is this, seriously?" I says.

Ever since I started to developed that 'wisteria' medicine. I started to get this threats which actually never bothers me since all they did was to scared me or call me in the middle of freaking night. As if that childish act will stop me for doing the 'wisteria' medicine.

Anyway, my name is Shinobu Kocho, twenty five years old and working as a pharmaceutical scientist in Oyabashi Corporation. If you haven''t hear anything about pharmaceutical scientist, then I'll give you a brief information. Pharmaceutical scientist usually specialize aspect of the drug development process. We may; design new drug therapies using natural or synthetic (man – made) ingredients. And lastly, pharmaceutical scientist like me, uncover new ways to use existing drugs to treat different type of disease.

As I was saying, I've been developing the 'wisteria' medicine for almost five months. The medicine that I've been developing is still on phase two and it will surely took years to finally able to say that 'wisteria' medicine can be used in treating that disease.

I took a glance over my clock beside my bed – sighing like an old lady, it still too early and I'm forcing myself to sleep will be vain. This is why, I hate getting interrupted when I'm sleeping.

Throwing the blankets to the side, I placed my feet on the floor and brush my fingers through my hair. I stood and shuffled towards the exit of my room. I closed both doors softly and went directly towards the garden.

The full moon shining so brightly – as the fireflies started to light the garden. I look at the moon as I remember the dream I have before I was interrupted. Ever since I was a child, I always dreamed that man. But this was the first time I dreamed like that.

Like we are almost having... 

O_O

Wait... what if we are really doing that thing? Holly molly! I'm having a wet dreams with that man who I never met!

Its freaking unbelievable! In my dream, it almost looks like I'm throwing myself to him.

My mouth slightly parted when I saw a group of violet butterfly flying above the sky. Strangely, I feel my heart clench in pain as the man on dream flashes before my eyes. What kind of person he is?

"The moon looks lovely" I mumble under my breath.

I wonder if... if he was having the same dream like mine.

I wonder if he's thinking about me just like how I think about him.