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.

There is a strange rumor that if anyone who gets a 20-win streak in this fighting game, they will disappear shortly after meeting a mysterious and beautiful character. It turns out Kiyoshiro knows this game.

Hiro and Ruli visit a theme park when a couple of Digimon show up looking for Blacktailmon, who has been visiting Hiro. Things get heated when Hiro's confronted, and Gammamon steps up to fight.

Ruli’s schoolmate Kayono hasn't been to school for about a month. People worry about her and visit her, but they disappear one after the other. Kayono gets caught up with a couple of bad influences.