Sword of the Demon Hunter: Kijin Gentosho (Manga) Vol. 4

"Jinya, now settled in the town of Edo, has been hunting down demons to make a living. Always alert to new rumors of incidents involving demons, he hears about a peculiar case of street murders while eating at his usual soba shop. He goes to investigate at once, but what awaits him there is a demon who can make himself invisible. Faced with Jinya and his demon strength, the stranger cries innocence--is there really something else afoot in Edo?"--