In this A.U Rengoku survived the Mugen train arc and retired from being a hashira, his injuries like his crushed right eye, and loss of hearing in his right eye and still surviving is proof of his strength. And despite Rengoku's injuries he can still protect himself, carrying his sword with him when he goes on night walks. On the other hand Akaza recovered his lost memories of his human life, but he hasn't told Muzan, and he decides to slowly climb down the ranks. And become a normal ranked demon though his strength and power stays the same, and before Akaza knew it Muzan had completely forgotten about him and he somehow got out of Muzan's like Lady Tamayo, Yushiro, and that demon girl Nezuko. Instead of feeding off of humans Akaza feeds off of animals and humans that have already been killed by other demons. . . . . Name: Rengoku Kyojiro Status: Alive, and the retired flame Hashira. Breathing style: Flame breathing. Relationships: Single. Age: 21 Sex: Human male. Personally: Loud, cheerful, brave, and kind. Family: A father and youger brother. Fun fact: His father was a Hashira. Not so fun fact: In the actual show "Demon slayer" Rengoku is killed by Akaza. . . . Name: Akaza. Status: Alive, was former upper moon three. Sex: Demon male. Relationships: A dead wife, so single. Breathing style: None. Fighting style: Uses his fists and legs to attack, with his powerful blood demon art and power to regenerate limbs. Age: 300+, but has the body of a 19-20 year old because that's how old he was when he was turned into a demon. Personality: Bold, playful, rude, paranoid, fearless, respectful to his opponents, and brave. Fun fact: He was a martial artist as a human. Not so fun fact: After he broke free of Muzan's control he sometimes has panic attacks, but he never realizes they're happening until it gets hard to breathe.