You met Kokushibou while he was out looking for humans. He found you all alone in the wood, just staring up at the moon.
Oh, he was definitely thinking of killing you, don't get me wrong. But first he just quietly waited, curious of why you were so interested in the starless sky.
It was dark so you couldn't really see him, but you knew he was there. You were a hashira after all.
~~~
"Hello, demon," he waited for you to draw your sword before it dawned on him that you didn't actually have it with you.
"Demon slayers not even use swords anymore?" he tsked, leaning up against the tree behind him. He could take his time with you and he could savour it all he wanted as dawn would not come for hours yet.
"Are you going to kill me or not?" you asked. Your voice was soft like the wind and refreshing like dusk in winter.
~~~
He didn't kill you. Believe me, he really had thoughts about it but for some reason, you distracted him and he knew you were more interesting alive than you would be dead.
From then until just before dawn, he'd sit in the darkest shadows to not be seen, and he'd listen to you or just watch you. Humans can be so beautiful in mortality.
What Do They Call You?
Platonic- stargazer or just (y/n)
Romantic- I don't think they'd change, to be honest. He isn't really too good with that sort of thing so he keeps a good thing.
When They Start To Like You?
He would often meet you under the moon like that, but he would always be hidden away out of view. He didn't talk much either so you found yourself asking things not expecting any real answer or just telling him things.
You didn't even know his name yet, and he hadn't asked yours.
You didn't cower from his appearance and you never judged him.
~~~
"What is your name, demon?" you asked, looking behind you into the showed treeline.
"Kokushibou. What's yours, slayer?"
You didn't answer him, "Why do you hide away like I have a sword?"
Then it was his turn to leave you answerless.
"It's (Y/N)" you said it quietly, but you knew he'd heard it from the slight rustle of movement. After a few moments you spoke again, "Is it because we are on opposite sides."
Now there's a thought. He hadn't realised the mess he could cause by sticking so close to a demon slayer so often. He could get you killed. He found the notion of his new companion being cut open leaving a horrible taste in his mouth.
"You wouldn't like my face," he looked down at his hands and then looked back over to you. 'This isn't the time to be going through a self-loathing crisis'
"How do you know if you don't let me look at you?" You could hear him stand up and walk behind you.
He stopped a couple of feet away from your back, "Do it. I want to see your face when you see mine."
It sounded like a thinly veiled threat like he was sure you would be disgusted by his form. You turned.
What you saw didn't shock you. You weren't exactly sure what you had expected him to appear as. He was tall, much taller than you, with long dark hair and six large, orange eyes.
"Dont hide from me, Kokushibou. We value more than face, you and i"
How They Act When In Love
He visits you more often at night. He also might talk a little bit more. Since that night, he abandoned his place in the shadows, in favour of sitting beside you, to bask in both the moon and your presence.
Holding Hands
He isn't the most affectionate person. Part of that I think is the fear that Muzan would find out about you and, well... It would end worse for you than it would for him.
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When he does though, he kind of melts on the inside.
Cuddling
He likes it when you lay your head on his chest. He's pretty tall so he thinks it is the most comfortable way to hold you for a long amount of time.
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Love Language
I think that Kokushibou's love language is quality time and acts of service. What he can't bring himself to say out loud, he says through things like mending certain things or just staying with you all night. He only gets to see you at night so he makes the most of it.
Love songs
Dandelions- Ruth B
"I'm in a field of Dandelions, wishing on every one that you'd be mine"
He knows that almost everything about your lives is working against the two of you being together so he's just hoping, praying to anything that will listen that one day you won't have to hide it anymore.
