They're all around us.

Digimon Ghost Game

High school freshman Hiro Amanokawa activates a mysterious device left behind by his father called "Digivice" that makes unknown creatures that cannot be seen by ordinary people, the Digimon, visible to his eyes. This is the story of this other side of the world that nobody is aware of. With their friends, Hiro and Gammamon dive into the mysterious world where these creatures live.