The mist pillar,Muichiro Tokito have a sister.Tokito Y/N,the tsuguko of Muichiro. A certain mission that make her teleport into future.What will happen to her? "I will change the whole shitty history and rewrite everything if I need to"-Tokito Y/N __ Demon Slayer Manga spoilers. Please don't copy my stories ideas. I don't own BNHA or Demon Slayer

I was gonna kill her until I found out she was broken and she wanted to die. What was the point of killing we her then, there's no fun in that. I watched her for a while and soon I befriended her. But who knew I would end up falling in love? ~ Jeff the killer * okay so trigger warning and also this story was made a year ago so sorry if it's crappy*