Webthe reason the ubuyashiki family was going after muzan was because, as per a priest, muzan's existence was what was causing his family members to become sick. Webas the hashiras frantically make their way towards the ubuyashiki mansion, it is engulfed by flames, leading to a destructive explosion that burns the ubuyashiki family. Webwe could see their devotion to ubuyashiki and the pain caused by his death. However, their shock at seeing muzan didn't last even a second as all of them charged. Webas the episode ends, all the hashira and tanjiro assemble with a unified goal: To confront and defeat muzan. Tamayo’s valiant effort and himejima’s charge. Webthe seven hashira and the kamados are ready to destroy muzan with or without their beloved leader around, because kagaya's defiant will is certain to outlive. Webdemon slayer season 4 finale episode marked the beginning of the final confrontation between the hashiras and the demon lord muzan. The evil entity makes a. Webubuyashiki went on to sacrifice himself and his family in order to defeat muzan. So this answers the question that ‘did muzan kill ubuyashiki’, no he did not. Webas a result, when muzan was about to kill him, he, in a shocking move blasted himself, his wife, and his two eldest daughters to take muzan off guard. Webdemon slayer's hashira training arc finale sets the stage for the final battle with muzan, marking the start of the biggest showdown.
