On social media, rumors of a mysterious phenomenon, known as "Hologram Ghosts," are spreading. Hiro Amanokawa, a first-year junior high school student, activates a mysterious device left behind by his father, and encounters a Digimon called Gammamon.

Something has disrupted the digital money system, angering the envoy of the god of wealth. What has caused the disruption? Hiro and the gang are on the case.