EDIT

You and tanjiro had woken up early to head out for a small shopping spree

"Hey tanjiro lets go to that store" you said as you grabbed his hand and went in

An old man welcomes you

"Hello children please have a look around"

"Woow tanjiro look they sell swords"

You said in shock

"Hey that one kinda look if you were to mix yours and mine that's cool" he said back still holding your hand

"Do you kids know something about swords"

The old man asked

"Ah yes we are actually demon slay- I mean trained in using swords"

Said tanjiro as you elbowed his stomach to stop him from saying the the word demon slayer

After a while you two went out of the store,

as you two where walking you spotted a (brothers hair color) head

You let go of tanjiros hand and ran towards the person

"Karma! Your alive!!"

You said hugging the stranger

"Get off me bro! I don't know you!" Said the man a little scared a random person was hugging him

"Karma dont play around!"

You said back

"Y/n get off of the man" said tanjiro

"No tanjiro it's karma!"

"...." he didn't say anything what he did kinda shocked you

He grabbed you by the arms and pulled you into a small ally area and yelled out you

"Y/N KARMA IS DEAD HES NOT ALIVE THATS NOT KARMA HES DEAD YOU NEED TO KNOW THAT HES NOT COMING BACK!!" He shouted at you in sadness and anger

All you could do was look at him in shock and blink as a tear rolled down your face

"W-wait y/n that came out wrong-" tanjiro stutters

Before he could say anything you ran away from him as you were running you bumped into a certain green haired boy

"Y/n are you ok why are you crying?!" Deku asked

All you could was hug him,he of course returned the hug, as he walked with you towards the dorms

You and deku where in his room just cuddling as you cried into his chest

He took out his phone and put candy crush on which made you smile and take the phone and start playing he didn't like to see you cry as you were a kind caring person

"Look I did it deku" you giggled wiping your tears away

All he did was smile

Hours passed as deku showed you movies and music but you told him you had to go

"By see you tomorrow y/n"he said happy

"Bye deku" you said back

Tanjiro pov

I never lose my temper but seeing y/n thinking that was her brother bothered me she knew he was dead and she couldn't cope with it I walked towards my room and saw y/n hugging deku as they swayed side to side

I saw y/n walking towards their room but before they could I grabbed them by the hand and took them to my room

"Y/n i-I I'm sorry" I said while looking down

"I don't accept you need to look at me in my eyes and tell me your sorry not the floor kamado.." they told me in a harsh tone

I looked at them straight in the eyes and held their face

"I'm sorry I said those harsh things to you please forgive me y/n" I said a bold tone as they started blushing from my face so close to them

"U-um ok you are forgiven"

"Thank you!"

I said and hugged them

"I'm sorry too I never should had run off"

They said in a sad tone

I just hugged them, we stayed like that for a while not letting each other go