Y/n make it out the infinite castle and he's horrified to see dead slayers everywhere including a Hashira while the others fight. *What happened!?" Y/n looks at a slayer with desperate eyes. the slayer eyes sadden."So far.. We lost Muchiro..Gyomei..Genya..Shinobi.. the others are fighting Muzan right now.."
*Sh-shinobu. " Y/n falls on all floors and stares at the soil while droplets fall from his face."I-I still can't believe it...I WON'T BELIEVE IT " Sniffs "D-damn it!" Tanjiro is knocked into the building next to him and passed out with one eye big and infected.Y/n hears a scream and sees Mitsuri deeply wounded."I need to.."He gets up clutching shinobu Nichirin.."Save them!"
He rushes at Muzan."Shadow breathing First form:INTERNAL SORROW!"He sends huge waves of shadow slashes that sallow Muzan into pure darkness.He fall to his knees and breath slowly"Are you guys alright -"Muzan breaks free and slams Y/n in the ground.
Giyu screams and runs to Muzan "YOU BASTARD!"Muzan who's now very irritated"Hmph.."
The fight comes to an end and once tanjiro is no longer a demon. Y/n prays to all the dead slayers and Hashiras that passed except Sanemi and Giyu that survived.
A few months
Y/n leaves shinobu grave tomb and stop when he feel arms wrap around him and a hug that was familiar."SHINOBU!!"He whips his body around and nothing is there but the fireflies in the night sky "...I'm sorry..I couldn't save you..Pl-please rest easy now.. Shinobu"A purple glowing butterfly flies Infront of him."..."
He holds his finger out and it lands on it."Y-you.."It has the scent of wisteria and it lands on his nose before flying away."Shinobu..
"He smiles softly and feels a sense of peace and relief that everyone felt when Muzan died."I'll live for you.."*he leaves *
After several decades past Y/n eventually past peacefully.
He winces at the bright light."I guess I died huh.."He look down at himself and sees he's going again and cracks a smile.
"I've missed you my dummy~!"His eyes widen and he turns around to and Seed Shinobi standing there With her iconic smile.He then realized they are both wearing clothes you'd wear if you went on a date and not slayer uniforms.
"Sh-shinobu!" Y/n ran toward her and embraces her in a Hug while she chuckles and Hugs him back.
"D-Do you know how much I've missed you.." Y/n sobber. "I've missed you to Y/n..I'm sorry I had to pass away but..I was prepared for that long ago..I knew it was gonna happened"
He hugged her Tighter"I..I failed my promise I-" She kissed his forehead."Y/n..I understand.. Don't blame yourself I know you tried your best to protect me and I'm Very thankful for that~!"
Y/n breaks the Hug"Why..Why didn't you pass on already.?" She smiles to what he said."I was waiting for you silly!" She boop his nose with her finger like she always would. "after all these years..you-" She grabs his hand and locks it with hers. "Let's go now..A place where we can rest.." He takes her hand and they walk into the bright light together.
The end
Word count:570
Hope you enjoyed bye :D
Here's some fanart