Akaza/Relationships

Keizo
Following the death of his father, Hakuji he goes on a rampage and begins to fight with a crowd of men. As a result of the commotion, Keizo is called to settle the fight and discovers that Hakuji has knocked all of the men unconscious. Keizo attempts to recruit Hakuji as a student at his dojo after being impressed by his fighting skills, he notices the criminal brandings on his arms and promises Hakuji that he will be reborn. Keizo provokes Hakuji by challenging him to a fight, but when Hakuji attempts to attack Keizo, he is swiftly knocked out by the dojo instructor.

Keizo after defeating and seeing Hakuji's potential then happily invited him to become his student in his Dojo,where he then introduced the orphan to his sickly daughter Koyuki.Hakuji then proceeded to spend the next few years training under Keizo with whom he began to genuinly began to love and see as another father figure.And due to her sickly health he had also began caring for Kyoki,with whom he eventually fell in love with and agreed to marry,effectively making Keizo's his father in law. Bringing true happiness and a sense of contentedness Hakuji never thought possible for someone like him.

However upon learning of Keizo's death alongside his daughter's due to a rival Dojo,Hakuji had fallen into a homicidal,nihilistic rage upon hearing of their deaths due to him not being there to save them despite his promises to them,causing him to then violently and brutally murder their killers barehanded,an event that was so brutal and bloodthirsty that not even the authorities believed than a human was even capable of such actions,due to how each and everyone of the bodies being torn,stomped,crushed and flattened to death.

Later upon being found by Muzan and being forcibly transformed into a demon,Hakuji emptily echoed that he didn't care about anything anymore due to having lost everything that mattered to him,showing just how deeply he cared for his teacher.

Tanjiro Kamado
Upon first meeting Tanjiro,Akaza first attempted to kill him quick and swift before even giving him a chance to defend himself due to deeming him to be "weak" and thus a bother and not worth his attention,causing the demon slayer to instantly dislike him.Later upon Akaza successfully defeating Kyojuro Rengoku and then fleeing the scene due to dawn approaching,Tanjiro began to greatly resent the Demon due to him insulting and looking down on Kyojiro despite him giving his all against his battle against him and later insulted the Demon and threw his blade into his back as he escaped and calling him a coward.

This event seemed to have greatly insulted and hurt Akaza's pride,as seen where he was steaming with anger due to remembering Tanjiro calling him a coward and later rationalized that he wasn't one and he simply made the logical choice as he would have died from the sunlight and the fact that Kyojuro probably could no longer fight back against him,but non the less still felt anger at the demon slayer and causing him to then swear to kill him the next time they meet.