I have very interesting thought, in this au (your au Senjuro, but my opinion/au about him), Senjuro had barely known his mother bc she became a demon early on his life, Shinjuro became an alcoholic and actually didn't become abusive or rude, he was actually kinder to Senjuro, but Senjuro, a young starter slayer, was to caught up with how his mother was a demon and he was a slayer, that his built up anger caused him to lash out a Shinjuro, and kill Shinjuro, he soon realized what he had done, and eventually turned himself in, the day of is execution, somewhat like Gyomei, Muzan (the demon slayer corps leader), who goes by Muzan Ubuyashiki, had saved Senjuro, knowing it wasn't Senjuro's fault, and explained to Senjuro why it wasn't his fault and how he can fix it, Muzan at the time was 13, while Senjuro was 15, now Muzan is 17, and Senjuro is 19, and Senjuro still has an angry, rude behavior, not wanting to seem like a softie and crybaby infront of the Hashira's bc he was an adult, he uses brash and crude words, he killed Demon Kyo (Kyojuro) in the final battle, Senjuro was knocked unconcious, and woke up to see Kyo fading way, screaming and crying Senjuro had hugged his younger brother Kyojuro, yelling for god to take him, and not the devil.. And, for this, Senjuro is 3 years older than Kyojuro, so Kyojuro was 11 when he became a demon, when Senjuro was 14, and now Senjuro is 19, making Kyojuro 16! Senjuro had lost his right forearm, and his left eye in the battle between Kagaya Kibutsuji, and carried the guilt of killing his father and younger brother..
@@how.to_kys haha it’s okay😭 and i really like this idea. I don’t do gacha anymore really but it i still did I think i would’ve added some of it into it! Muzan is still Kibutsuji and Senjuro isn’t a hashira or older than Kyojuro, Senjuros a slayer in training but is still very skilled and is somewhat near a hashira. Kyojuro doesn’t fight in the final battle because he had died during the train arc, but Senjuro does fights during the finale battle, he fights against Gyomei and sadly dies but goes to hell with Kyojuro. And as for the mother, she only died because of her illness. I didn’t change much, only a few things! But i really do like your idea of the AU, it’s really interesting :3