Giyuxtanjirou Stories

a boy who was born sick and really loved his family but a man came and killed tanjiro family all of them even nezoko(sorry if I spelled her name wrong) he was so ill he was just sitting there watching his family die but the man/muzan axed (sorry if spelt wrong) him to be a demon and that he can be better than right now tanjiro didn't know what to say so he said yes you want to figure out the rest of it then read yo find out