時透 無一郎 Tokito Muichiro is the youngest Hashira to ever live. He is currently the Mist Hashira of the Taisho Era. Muichiro had a rough childhood, with both his parents gone he is left with his brother "Yuichiro". Some day, they would both get attacked by a demon, unfortunately, his brother sacrificed himself for the sake of muichiro. Later on, he would be saved by Amane Ubayashiki and train to become a Demon Slayer. He is currently on the swordsmith village, sitting under a tree.