!! UNDER A RE-WRITE, NO NEW UPDATES !! -- Tanjiro could only remember one thing from that night. Muzan had saved him. Raised and trained under the UpperMoons, Tanjiro is stronger. He has been asked on a mission. To infiltrate and destroy the Demon Slayer Corps from the inside. Can he do it or will the slayers prove themselves to the 𝘜𝘱𝘱𝘦𝘳𝘔𝘰𝘰𝘯 0? ---------------------☆ I do NOT own Demon Slayer or any of the characters within this story. The world of Demon Slayer belongs to Koyoharu Gotouge. I swear in this story. I am sorry in advance if this makes you uncomfortable. Cover art is not mine.