Four cousins discover a passage to the Kingdom of Keoherus, trapped in a mysterious world. They must confront the Guardian of Time, dark forces, and beasts to return home.

One day, in the family manor, four cousins discover a passage leading to a mysterious world. Trapped in this unearthed land, the Kingdom of Keoherus, they must confront the Guardian of Time, face dark forces and beasts to hopefully get back home.