Twilight Sparkle was an ordinary high school student until she found herself curious about solving a murder case that occurred on the first day of school, along with the new transferee, Sunset Shimmer. They both became the founders of the C.H.D Club and proceeded to solve crimes on and off-campus. Join the two C.H.S Detectives as they piece together the jigsaw of mysteries and bad intentions, and meet new people who will join them in solving cases at Canterlot High School.