Sword of The Demon Hunter S01E01

For generations, a shrine has stood in the mountain village of Kadono, and in each generation, the shrine has had an Itsukihime—its shrine maiden—and the maiden has had her guardian. During the Edo period, a young man named Jinta protects the town and the Itsukihime. One day, when he confronts a strange demon in the forest, he is told that in the distant future, a Demon God will threaten all of humanity, and that the Demon God's rise to power will begin in this very time and place—in the village of Kadono. Thus begins a centuries-long journey of a man tainted by demons, hunting through time to seek justice for what he has lost and to find a reason to keep fighting.