Shinrei Tantei Yakumo

A high school student named Haruka Ozawa faces disturbing events during her sophomore year as one friend is possessed and another dies by suicide. She may be next unless she finds help from Yakumo Saito, a student with a red eye that lets him see and speak with the dead. The dead often refuse to stay buried, and some murderers are willing to kill again to keep secrets hidden. Haruka has a talent for uncovering hidden truths, and others, including a police contact and a journalist, are also digging up bodies. Together, Haruka and Yakumo attempt to solve these supernatural cases before becoming victims themselves.