xxxHOLiC Kei

Alternate titles: Shinreigari Ghost Hound

Tarou has dreams - distressing dreams, related to the trauma he suffered as a child. His dreams and visions disturb his ease of mind, constantly reminding him of the darkness of his fear at the time he lost his sister all those years ago. He relives the fear, but can't recall any of the details of the time. Now, a new transfer student, Masayuki, takes an interest in Tarou's troubled past, as well as their school mate Makoto's connection to the dark incident. Under his persistence, the three boys end up visiting the site where Tarou was held hostage as a child: a decrepit hospital beyond the dam. The three venture forward to face their pasts and fears, unsuspecting of the bizarre world they are about to enter...

Mai Taniyama is a first year high school student who lives a carefree life telling ghost stories with her friends. One day, she meets Kazuya Shibuya, the head of Shibuya Psychic Research (SPR); and together, she tags along to help him investigate paranormal activities in a haunted school building. His assistant Lin was hurt during an incident to protect Mai from danger, so what more can Mai do than to take the job as Shibuya's assistant? Along with a team of other ghost hunters, they will uncover the mystery of a strange case coming their way, while Mai starts to discover her own abilities.