Episode 50

Aren't You Going to be a Hashira? (柱になるんじゃないのか?) is the 50th episode of the Kimetsu no Yaiba TV anime series, and the 6th episode of its third season.

Plot
Shocked to see Genya’s demonic appearance, Tanjiro becomes hesitant to approach him. Karaku yells out in agony over his opponent’s latest attack and his inability to seemingly heal, making Tanjiro realize that his effort to heal heavy damage have succeeded. However, Sekido is angered at the demon of pleasure’s loud cries, remarking that they are healing, only slower. Notices that Aizetsu had been beheaded, Tanjiro sees that decapitating even all four manifestations will not kill them, making it redundant to attack them.

He frees Nezuko with his blade from being pinned by debris and they embrace in relief. Even after knowing the scent of all four demons, Tanjiro remarks of his unsettling discovery of a fifth scent, knowing he must find it hidden in the battlefield. Genya suddenly grabs his throat and angrily yells for him not to get cocky, states he will kill the Upper Rank. He claims that him having assistance with Upper Six is why he is not a Hashira; as Tanjiro asks what had happened to him and to ease his grip, Genya tightens his hold and declares that he will become a Hashira.

Instead of being hurt, Tanjiro happily states that he and Nezuko shall support him on his journey and tells him that a fifth demon is hidden somewhere. Genya refuse to believe him and think that Tanjiro is getting him to lower his alertness, only to see his bright shining eyes and realize he is being honest. He suddenly pushes Genya aside as lightning begins to strike around them, as Sekido, Karaku, and Urogi have now fully regenerated. Tanjiro asks him to go with Nezuko and engage the clones as he heads away from them and attempts to search for the fifth demon. Genya fires at Urogi while Nezuko battles Karaku, who unleashes a wind gust that nearly hits Tanjiro.