You are a lone demon who defies the norm. Resolved to protect humanity, instead of bringing it to ruin, you expected to be on your own forever. You certainly never thought that you'd become an idol, of all things, forced into the limelight you avoided for so long. And you also never thought that humans and demons alike would fall for you.

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