Kaisei Sato

Haunted by past trauma, Hathaway Noa is drawn to a mysterious girl named Gigi Andalucia, whose strange powers stir memories within him. While swayed by her cryptic words, he continues preparing for Mafty's mission -- the attack on the Adelaide Conference. Meanwhile, Kenneth Sleg of the Earth Federation Forces prepares a defense operation for the Adelaide Conference and a plan to eliminate Mafty and is approached by Handley Yoxon of the Criminal Police Organization with a secret proposal. As Hathaway and Kenneth pursue their respective goals, Gigi also sets off for Hong Kong to fulfill her own role.

The Demon Slayer Corps are drawn into the Infinity Castle, where Tanjiro, Nezuko, and the Hashira face terrifying Upper Rank demons in a desperate fight as the final battle against Muzan Kibutsuji begins.