We know the story and the journey of Kamado Tanjiro and Kamado Nezuko. Their family killed by 'that man' and turning Nezuko a man-eating demon. Both of them are motivated to walk the path to find and kill the one who murdered their love ones. But.... . . . . . . . . What if their supposed intention was just an act? And the enemy of the Demon Slayer Corps are just under their nose all of the time? Previously titled as "Pale Crimson Eyes"