ดาบพิฆาตอสูร ภาค ย่านเริงรมย์

Tanjiro and Nezuko have been apprehended by the Demon Slayer Hashira, a group of extremely skilled swordfighters. Tanjiro undergoes trial for violating the Demon Slayer code, specifically smuggling Nezuko, a Demon, onto Mt. Natagumo. A recap of Kimetsu no Yaiba episodes 22–26, with new footage and special end credits.

Tanjiro, now a registered Demon Slayer, teams up with fellow slayers Zenitsu and Inosuke to investigate missing person cases on the mountain Natagumo. After the group is split up during a battle with possessed swordfighters, they slowly begin to realize the entire mountain is being controlled by a clan of Demon spider creatures. A recap of Kimetsu no Yaiba episodes 15–21, with new footage and special end credits.

อสูรระดับสูงทั้งหมดหกตัวมารวมตัวกันที่ Infinity Castle หลังจากที่อสูรหกตัวก่อนหน้านี้พ่ายแพ้ไป

Tanjiro undergoes rigorous training with the Stone Hashira, Himejima, in his quest to become a Hashira. Meanwhile, Muzan continues to search for Nezuko and Ubuyashiki. A recap of Kimetsu no Yaiba episodes 55–56, with new footage and special end credits.

Tanjiro Kamado returns home to find his family slaughtered and the lone survivor, his sister Nezuko, turned into a Demon. To his surprise, however, Nezuko still shows signs of human emotion and thought. Thus begins Tanjiro's journey to seek out the Demon who killed their family and turn his sister human again. A recap of Kimetsu no Yaiba episodes 1–5, with new footage and special end credits.

Tanjiro ventures to the south-southeast where he encounters a cowardly young man named Zenitsu Agatsuma, a fellow survivor from Final Selection. His sparrow asks Tanjiro to help keep him in line. A recap of Kimetsu no Yaiba episodes 11–14, with new footage and special end credits.

ม่านหมอกปริศนาทิ้งตัวลงปกคลุมย่านชิบุย่าอันพลุกพล่าน ท่ามกลางฝูงชนที่กำลังเฉลิมฉลองเทศกาลฮัลโลวีน ทำให้ผู้คนจำนวนมากถูกขังอยู่ภายในอย่างกะทันหัน หลังจากเหตุการณ์นั้น อาณานิคมทั้งสิบแห่งทั่วญี่ปุ่นก็ถูกเปลี่ยนสภาพให้กลายเป็นแหล่งชุมนุมของคำสาปอันน่าสะพรึงกลัว

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.