In the snowy mountains of Taisho-era Japan, kind-hearted charcoal seller Tanjiro Kamado works tirelessly for his family, never suspecting the ancient horrors lurking in the night. His path eventually crosses with Kanao Tsuyuri, a talented but emotionally distant Demon Slayer whose silent heart creates a gap only Tanjiro’s persistent warmth can bridge. However, his world is shattered when he finds his family slaughtered and his sister Nezuko transformed into a flesh-eating demon. The tragedy escalates with the arrival of Giyu, a mysterious swordsman who intends to kill Nezuko until Tanjiro desperately intervenes to save her. Thrust into a dangerous world of malevolent creatures, Tanjiro must master the blade and seek answers from those who hunt in the shadows. Driven by an unbreakable bond, he begins a perilous quest to avenge his family and find a way to turn his beloved sister back into a human.