As the battle against Muzan Kibutsuji looms closer, the elite swordsmen of the Demon Slayer Corps—the Hashira—initiate a rigorous training program to prepare for the decisive conflict. Tanjiro, still recovering from the intense battles at the Swordsmith Village, joins the grueling training, determined to grow stronger. Along the way, he gains deeper insight into the Hashira’s unique skills, motivations, and pasts. With each trial, bonds are tested, resilience is forged, and the path to the ultimate showdown with Muzan begins to take shape.