Sword of the Demon Hunter: Kijin Gentosho (Manga) Vol. 2

As Guardian of the Shrine Maiden, the elimination of demons falls firmly into Jinta's hands. He takes his responsibility to Shirayuki and the village of Kadono seriously, so when two demons appear in the forest, Guardian Jinta leaves for the hunt immediately. Behind his back, a demon approaches his little sister, Suzune, waiting and supposedly safe within the village. Blind to the threat lurking close to home, Jinta charges forward into a trap.