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.

Trick or treat! It’s Halloween and Ruli is getting ready with decorations. However, one by one, people begin to disappear. Hiro and the gang investigate.

A mysterious nightly procession of monsters has been causing accidents on the highway. Ruli asks the gang to join her at the go-kart track, when they’re met with unexpected danger. Will they be able to survive until morning?

Kiyoshiro invites the gang along to his academic conference, upon hearing that his hotel is haunted by a Zashiki-warashi. There, they investigate the rumor of the haunting, while Gammamon has trouble accepting what happened to Bokomon.

Jellymon is running a sleep therapy scheme when everything goes sideways! Jellymon’s customers are waking up with injuries. The gang go to investigate, but will they be able to escape the nightmare?

Recently, something seems to be attacking all the people who interact with Yuto. Yuto decides to ask his friend, Hiro for help. Along with Ruli, Hiro and the gang investigate the mysterious phenomenon behind Yuto’s acquaintances turning into plants.