[ok let's Skip all manga to final fight]

Everyone was fighting Muzan trying to find a way to kill him while you were trying with you powers and final form to kill him it was almost impossible to kill him everything was going Good everyone was about to kill him when all of the sudden...one of muzan tentacles pass threw your stomach *like akaza did with Rengoku* sun was going out but you did not let muzan tentacles out of you stomach for him to Burn in your stomach he was so desperate to escape so he just cut his tentacle and ran away he was going to fast none of us could reach him when he complete ran away Tanjiro ran to you with tears

-¡¡Y/N!!-He said with tears

He huged you and place your body in his lap you gave him a weak smile, that smile told him you needed to go he had waterfalls in his eyes telling you not to leave his side

-Im sorry...-You said smiling but also with a with that smile you had tears, you know your moment to leave has come to you but Tanjiro did Wanted that to happen.

-Y/N DON'T LEAVE MY SIDE PLEASE...I beg you...Don't leave me..i  can't lose someone else please..don't leave me..-He said crying waterfalls he did not want you to leave his side he lose enough people already he wouldn't soppurt losing someone that is more than his life.

-Tanjiro look at me...-You said with a sad smile

He look up at you and you gave him a sad smile you were about to close your eyes his eyes big as plate 

-Y/N Y-Y/N stay with me don't leave help is coming Don't leave!...help is coming..just don't leave I want you here with me..please! Don't leave..-He said crying more than ever at the moment he knew his Lover was about to leave his side

[[Flashback...]]

You to were in a tree it was daylight Tanjiro was hugging you from behind you were smiling at the action Tanjiro was doing but you thoughs were broken by Tanjiro's voice

-Y/N-he said with a dark blush creeping out of his face

-Yes?-You asked

-Promise me that when we defeat Muzan we are gonna get married and make a family-he said blushing 

-I promise...-you said smiling and a blush creeping out of your face

-I love you..-he said softly

-I love you too...-You said softly

[[End of Flashback]]

-Y/N you made a promise! You can't Break it! Please...Don't leave me..-He said his with a crying voice he did not wanted to leave you he loved you to much to believe you were gonna leave his side 

-I'm sorry...I love you-You said almost closing your eyes

-Y/N stay look at me look at me!-he said desperate

You looked at him smiling

-You know..I love you right?...-You said

-I-I do...-he said crying

*He had both arms sorry*

-Just let me go..I will met you next life...-you said smiling

-How can you smile in a moment like this?! Please! Don't leave I need you in my side! You need to be in my side!-he said 

-I'm always with you...-You said

The kakushi were going to were you and Tanjiro are

-Y/N help is here!-He said happy because he thinked you could life

...You didn't respond..

-¿Y/N?...Y/N wake up..Y/N is not moment for jokes! Please wake up! ¡¡Y/N!!-He yelled

-'Yorichii-Sama,Brothers,sisters,mom,dad I'm gonna be with you finally just wait..I'm sorry Tanjiro..I love you❤️'-You though with a smile and tears

Tanjiro was hugging your body screaming your name...Hoping you would respond but you wouldn't...you left..

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7 Months Later

7 Months passed Everyone was still sad by your dead they couldn't accept you were dead Nezuko was a Human she was gonna get revenge for you and the one's who died in the battle Tanjiro was never smiling anymore the Light that was always in his eyes once were not there anymore he was still kind but never smile he was using your mask and a hair clip that you always had that two things were the only thing remain 

He always use them for him to remember you even if he did not had those things with him he would always remember you Since you died he sweared that he was gonna kill Muzan to Revenge his Family especially you, you were really important to him all nights he visited your Grave and talked to it with a smile everyday he cried in his room because he needed you with him...

The clip look like this:

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Tanjiro's POV

I was in my way to a mission i jus needed to go and kill the demon that was all, and i could Finally visit Y/N i Better do this fast i wanna see her...i was going to were the location Is and i saw the demon as the hashira i am i killed him fast but i heard "Blood demon Art-Dimension" and with that a portal appeared down in the grays and i was falling was this the end?...if it was i Can wait to see Y/N...im sorry Nezuko..Zenistu,Inosuke,Kanao and everyone..

Tanjiro was hoping it was the end but before he crashed in the floor he saw tall places and objects moving and he crash in the snowy floor and he hit his head in a tree that knocked him out 

-Mm? Oh shoot poor boy..mm yeah i Should help him!-Someone said 

18 Minutes later...

Tanjiro was waking up and he looked he was in a bed? He did not know what was he was on he saw he was in different cloths he saw he had food beside him with the serious face he had he grab the plates and started to eat the food Tasted like Y/N's food he smile d a bit and continue eating..

When he was done he left the plate a side and saw the room 

*Ignore the person, and infront of the bed in a wall thee was a television*

-'what Is this place?...'-He though confused he didn't know what was happening the cloths,The bandages in his head,the room,the food who would do this?

He was still stuck in his thoughs until he heard the door open he did not care and was still staring at the window until he heard a voice that gave his heart and his emotion to mixed up

-Oh! I see you woke up already! So? How do you feel? Are you ok?-The girl voice said worried but happy at the Same time

He was paralyzed in his place and tears was rolling out of his eyes he turned to the person who was it..the light in his eyes that were once there Came back to him, he was about to talk and he said with a crying voice and happy voice at the Same time eyes open as a plate 

...-Y/N?...-