Butterflies - A Kny Au

[REWRITE]
Shinobu X Male reader/oc i suppose
A kimetsu no yaiba AU ,
the plot isn't majorly changes as iv'e just inserted my oc's and tweaked the story line slightly , the general outcome remains the same , all deaths still occur ect.
spoiler warnings for the manga of demon slayer , i plan to write the AU to the sunrise countdown arc.