Based on the Kagerou Project, and Mekaku City Actors anime, Flam, a NEET who's shut himself in for years after the loss of someone he cared about, has been living an average life until a strange cyber pony known as Pinkie installs herself on his computer via a mysterious e-mail. Due to Pinkie's mischief, one day Flam breaks a vital component of being able to use his computer, which forces him outside for the first time in years. During this trip, he end up part of a hostage situation, and encounters a group of ponies known as the Neighkakushi Dan, and helps them stop the criminals.
Little does Flam know, this will only spiral into even more and more chaos.