Tanjiro Kamado . A 18 year old boy , who used to live happily with his family . But one day his family was slaughtered by the king of demons , kibutsuji muzan . With his family dead and his sister , nezuko kamado , now a demon . He became a demon slayer , that hunts down the demons and destroy them . He vows to find a way to turn nezuko back into human again . On his way to find a cure he made many friends and faced many enemies together . The demon slayer corps is an ancient secret organization . Whose purpose was to protect humanity from the threat of the demons . Once thought to be nothing more than legend , these demons are a threat to destroy everything that humanity holds dear . So , the stakes are high and the cost of failure is death . All the characters in this story don't belong to me . They belong to their original creator gotouge sensei . Except my OC's .