NOTICE: I feel I need to say this to avoid confusion the only ponies turned human are Sunset and the Dazzlings all other charcters are the human world version of them and have neither the memories or experience of their pony counter parts. The Twiligt in this story was the Twilight that at the end of Rainbow rocks in glasses. Not the princess pony one. Thank you for your time.
Having finished high school at Canterlot high Sunset goes to College with the human Twilight. While Twilight studies mostly established fields of science, Sunset focuses on the paranormal after hearing of the heroics of the Ghostbusters in New York. Shortly after they finish their studies, and return to Canterlot, they get wind of numerous unexplained and ghostly events. After getting the gang together Twi and Sunny head out on a road trip in Vinyl and Pinkie's failed party bus to ask the Ghostbusters to investigate. Due to having just finished dealing with the events of the games the Ghostbusters offer the girls the option of franchising rather then just a simple investigation trip. So they help them set up the bus as Ecto-16 and set up in Canterlot.
Now the new Ghostbusters of Canterlot must take on a rising hoard of ghosts. Join Adgio Dazzle the team leader, Aria Blaze the badass, Sonata Dusk the slime exorcist, Rainbow Dash the driver and awesomest of all, Applejack the mechanic, Sunset Shimmer the field expert, and Twilight Sparkle the labtech, secretary, bookkeeper and boss. As they face of with demonic power of the Nightmare Moon and her legions of the dead!
Joint project of myself and Bryan Luna