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.

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…

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…