Kagaya Ubuyashiki is dead, at the age of 23. Before his death, he spent everyday visiting the graves of fallen Demon Slayers till his affliction finally prevented him from doing so.
Gyomei Himejima recalls the first time he met Kagaya, when the Oyakata was fourteen and he himself was eighteen. Immediately, Kagaya knew that Gyomei had protected the children he was accused of killing. Gyomei remembers even back then, Kagaya spoke in a way that people wanted to hear, and his solemness remained till his last moments. During the last time he personally spoke with the Stone Hashira, Kagaya predicts that Muzan Kibutsuji will come within five days, instructing Gyomei to decapitate him as Kagaya decoys himself. When asked about his certainty, Kagaya only responds it's just his instincts. It is revealed the Ubuyashiki family's way with foresight and instinct was unmatched, using their power to protect themselves from disasters. Kagaya knows the other Hashiras will not accept his decision of self-sacrifice, and asks the Hashira he has known for the longest to carry out his last wish. Gyomei obliges, to the gratitude of Kagaya.
Gyomei manages to successfully behead Muzan, assisted by Tamayo keeping the demon still. As Kagaya had predicted, Muzan regenerates his head completely, unsurprising to Gyomei. He recalls his late leader's words that sunlight is the only way to kill the Demon Lord and he resolves to keep him restrained till dawn. Muzan attempts to ensnare the Hashira with Blood Demon Art: Black Blood, Brambles, but the attack is deflected by Gyomei's Stone Breathing, Third Form: Stone Skin. Sanemi arrives and angrily asks what has become of Kagaya. The rest of the Hashira arrives, asking themselves about their leader's state. Gyomei announces they are now facing Muzan himself, to the shock of all the Hashira as none of them have ever directly encountered him. Tanjiro, the only one present who has personally faced him, angrily calls out to him. All the remaining Hashira use their respective Breathing Styles in order to cut Muzan down: Muichiro using the Mist Breathing, Fourth Form: Shifting Flow Slash, Shinobu using her Insect Breathing, Butterfly Dance: Caprice, Obanai using the Serpent Breathing, First Form: Winding Serpent Slash, Mitsuri with her Love Breathing, Fifth Form: Swaying Love, Wildclaw, Giyu with the Water Breathing, Third Form: Flowing Dance, Sanemi with the Wind Breathing, Seventh Form: Gale, Sudden Gusts and Tanjiro with the Hinokami Kagura: Sunflower Thrust, as they converge on the demon, Muzan laughs to himself.
Giant doors suddenly appear and slide open under the Demon Slayers, causing all of them to plummet into the Infinity Castle. Muzan mocks them for believing they had him cornered and declares he will kill them all tonight. Tanjiro responds back that the only one to die will be Muzan and he promises to kill him. Muzan answers his challenge, "Then do it if you can! Tanjiro Kamado!!".
Characters in Order of Appearance
- Kagaya Ubuyashiki
- Amane Ubuyashiki
- Gyomei Himejima
- Muzan Kibutsuji
- Sanemi Shinazugawa
- Mitsuri Kanroji
- Obanai Iguro
- Giyu Tomioka
- Shinobu Kocho
- Tanjiro Kamado
- Muichiro Tokito
- The Demon Slayers fall into the Infinity Castle