When Yoriichi died, he died crying for his older brother who turned into a demon. He cried because he couldn't accomplish anything he was supposed to in his life. And then, Tsugikuni Yoriichi was reborn as Tanjiro Kamado, an omega prime. And apparently, he was cute enough to get the attention of all the Hashiras in Demon Slaying Corps. And not only them... Kibutsuji Muzan claimed him even more beautiful than when he was still beta Tsugikuni Yoriichi. Well... Yoriichi - now Tanjiro - didn't think so... ° ° ° ° ° ° ° ° This is an reincarnation AU where beta Yoriichi got reincarnated as omega prime Tanjiro. Also... Everyone seems to miraculously fall in love with him... Alpha/Beta/Omega Dynamics

'Where do we go from here?' SPOILER ALERT! For those who haven't read the manga yet, please know that this story has a lot of spoilers. You have been warned. Also note that there are going to be several ships that I'm going to insert into the story. That's all! Have fun reading.

He will do whatever it takes to accomplish two things: Protect his sister and fulfill his father's longing. After all, it's cursed blood

The demon lord, Kibutsuji Muzan , attacked the Kamado home, extinguishing the Sun Breathing technique from existence. However, Tanjirou was at the village, only coming back when he smelled blood. Muzan then turns Tanjirou into a demon and kills all of his family. Tanjiro never saw his Sister dead. Tanjiro wanders the country, searching for his lost Sister. Will he find her again? [THIS IS DISCONTINUED BUT CAN BE ADOPTED] Lol it's finding nezuko not finding Nemo What lies in Tanjiro's future? Most likely have manga spoilers idk I haven't thought it through. I do not own KNY. A fabulous person called Koyoharu Gotouge does.

muzan visits earlier then expected for the kamados and ended up with a child to raise

Kimetsu no Yaiba is owned by Koyoharu Gotōge. Tanjiro and Kanao were in the same mission in battle. Unexpectedly, tragedy had come to face them. The infamous pillar Tanjirou was demonized and now had to obey the demon leader's orders. Promise broken. Warning: SPOILER (don't read if you haven't read the manga yet) Expected OOC. Reference from a Doujinshi.