Webin a fierce battle against the demon slayers tanjiro and giyu, the powerful demon akaza is haunted by a voice urging him to end the fight. Webakaza is loyal for loyalty's sake, almost in a professional manner; He has no recollection of his past life, but akaza's diligence as a warrior seems to be deeply imprinted in him. Webakaza’s strategy was to separate the two so that they did not overwhelm him. He sent giyu flying with a punch to face tanjiro alone and exact his revenge. Webit's probably where anime watchers are going to start flooding the comment sections of any youtube video on akaza with apologies for ever hating him for killing rengoku. Webso why does akaza refuse to use a weapon when fighting against demon hunters? Although the answer has not been explicitly by the mangaka, important clues. Webdespite his heartbreaking past, akaza chose to kill innocent people for muzan's cause and his own pleasure. Webgyutaro or akaza's backstories were the saddest in the sense that their life was horrible and drove them to do horrible things. But kokushibo's might be even more impactful to.