It has been three years since the defeat of Lucemon. The children who were blessed with the ability to transform into the Legendary Warriors had triumphed over evil. With the fractal code returned to the Digital World, the children could return to the real world.
The rulers of the digital world were able to return to their Mega forms a year after their departure, and another year to remove the chaotic effects Lucemon had on the digital world.
It seemed as if peace had returned to the digital world; however, by the third year, reports of hostile Digimon started to crop up all over the world. These lowly Digimon did not have the capacity to stage strategic attacks like these across the digital world so only one conclusion was possible. That there was high level Digimon pulling the strings.
The Three Celestial Rulers of the Digital World became greatly troubled with these occurrences. In desperation, one of the dark leaders grew bold and waged war against the Three to gain the territory inhabited by Cherubimon. However, with their unified powers, they managed to bring down the Goddess of Darkness, Lilithmon, and put a stop to her plans. But not without casualties.
With heavy hearts, the rulers found it necessary to call for the assistance of the children once again. Though unbeknownst to them, their enemy had plans of their own for a human child.