Piercer is an Dectective who got Reincarnated to Modern-Fantasy world. She once was a genius Dectective who can Solve the mystery of the Jack the Ripper murders in the future. After all of her achievement, She got ambushed by the criminal because of her threat to the crime world. After got Reincarnated, She still keep herself as a Genius Dectective, but now as a Bounty Hunter and will not let her guard down this time.