Dusk Maiden of Amnesia
In the most creepy, old abandoned school building lies the Paranormal Investigations Club of Seikyou Private Acadamy. The President of the club isn't your typical student though as Yuko Kanoe has been dead for 60 years now, with her body still lying under the clubroom itself. With no memory of her past or of how she died, Yuko has been wandering aimlessly through the school's halls... until she meets Teiichi Niiya.
Teiichi seems to be the only person who can see her and he is determined to uncover the truth. But there are some things that are better left alone, and Yuko's past just might be one of them.