Neither God Nor I is a Manga/Manhwa/Manhua in english language, Manhua 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 weak-willed Dan Yishi was bound to and disturbed by the resentful spirit of his elder sister. In order to dissolve her resentment, Dan Yishi became a shaman, walking the path of repelling spirits. In the journey, Dan Yishi is hindered by the criticism of the shaman community, strong spirits and his own guilt. Finally, Dan Yishi reconciles with the spirit of his sister, growing into a strong man.