As the last bastion of humanity's safety against the demons skulking in the night, the breath-powered warriors of Demon Slayer belong to an association devoted to the eradication of Muzan Kibutsuji's legion of monsters. Among the demon slayers are the Hashira, elites who stand near the top of the hierarchy as the strongest fighters in the Demon Slayer Corp.
Source：https://www.cbr.com/demon-slayer-hashira-deaths-in-chronological-order/
