The fierce fight between demon-defenders and Muzan Kibutsuji, the ancestor and creator of all the demons, is coming to an end. The four serums Tamayo inoculated in Muzan have weakened to the point that he finally seems vulnerable... But there is nothing more dangerous than a predator back to the wall and Muzan, ready to do anything to survive, did not say his last word. What is the fate of Tanjiro, Nezuko and the other demon-defenders? You are going to witness the spectacular conclusion of a thousand-year war against demons!!