Fnaf security breach: Overclocked

A year after cassie went missing in the pizza plex former enployee vanessa returns to the pizzaplex with a franchize license and begins rebuilding everything, however during rebuilding she finds an animatronic she doesn't recognise, with some digging she finds it was bought but never used, her memory is still hazy at best but with gregory and freddy both safe its up to her to follow the sinking feeling that caused her to return to the place where her nightmares were born with the help of the glamrocks. The past comes back to haunt this fazbear location in search of an enemy none of them have met. But what does the new animatronic have to do with it? The answers all lay hidden in fnaf security breach: overclocked