Nejikemono is a Manga/Manhwa/Manhua in english language, Action series, english chapters have been translated and you can read them here. You are reading chapters on www.mgeko.cc fastest updating comic site. The Summary is

The time is the Sengoku era, the place is the country of Kyushu, Hyuga. A lone warrior is asked to exterminate a fox youkai, enters the mountains, and encounters a strange woman.