Demon Slayer: Breath of the Source

Yamano Yoichi entered the world of Demon Slayer because of a car accident, even before Anjuro entered the Demon Slayer Corps! After entering the world of Demon Slayer: Kimetsu no Yaiba, he possesses an innate special power: the power of the source, and he understands the breath of the source on his own. Where does the source of power come from? What's the secret behind the car accident that brought him into the world of Demon Slayer? After arriving in the world of Demon Slayer: Kimetsu no Yaiba, can Yoichi Yamano change the fate of those swordsmen who sacrificed their lives to kill Mukai? All of this requires Yamano Yoichi to explore slowly...