Recently, my hard drive crashed and I lost a few GBs of manga. I am in process of slowly replacing what I lost, but can't recall the title and location of one of my favorite works. It was a completed series, and the it was about a girl who appeared one day without any memory or any report of her being missing.
The detective assigned to find out who she is soon learns she has special powers (like talking to dead and teleportation). She helps solve some murder mysteries by communicating with the dead...
As he falls in love with her, he finds out that she is a doopleganger, who will eventually die.
Anyone recognize this?
Thanks in advance for your help!