What happens when you reply to a spam text message? (I do not condone replying to spams, DO NOT REPLY TO SPAMS EVER.)

In which you find yourself in Demon Slayer after staying up too late one night and forgot to keep your sanity. "... Why am I here? Just to suffer?" "Y/n, I'm hungry." "... Crap." ... Demon Slayer, its story, and characters do not belong to me, they all belong to Koyoharu Gotogue. I only own this fanfic's plot.