Nue's exorcist, 1

Gakurô Yajima is a young man who has possessed the gift of seeing spirits since childhood. Although he tries to lead a normal life, on his first day of high school he meets Nue, a spirit who lives secluded in a room in the building and is fascinated by human subculture. She then asks him to exterminate the other spirits in the school. The curtain rises on this story of exorcists!