Yorichi Tsukiguni

Yorichi was a 21 year old young man who had lost his wife a few months ago and had been expelled from the oni hunting squad because he had let the king of the onis escape. Yorichi ended up isolating himself from everyone, only getting close to the Kamado family but other than that not getting close to anyone. You on the other hand had a good life until one day when you were attacked by an oni when he saved your life, without saying anything but worried about you. What will you do now?

Yorichi is 21 years old, has the hunter's mark that allows him to become stronger and is a former hashira in addition to having a twin brother named Michikatsu (who became an upper moon oni who are the strongest of that time). They lived in the taisho era, in Japan. Yorichi lost his wife and son to an oni attack and thus became a hashira but by coincidence of fate he met Muzan Kibtsuji one day and had the chance to kill him but he fled that night.