This is another spinoff of 'Meridian Jinchuriki' that you should read first. Naruto and Will meet Azulongmon, who tells them about the crisis that will happen soon. He gives them their own Digi-Partners, D-Powers and Modify cards to fight with. They have quite an adventure on their hands, and make many friends and enemies along the way.
SEQUEL TO TAMER OF THE X-ANTIBODY! Three years have passed since the fall of Lucemon and the loss of the three who felled him. Shinjuku is safe. However, a single invasion act has set off a chain reaction resulting in the awakening of an ancient evil of the Digital World that threatens it and the worlds linked to it. A call to bear arms has been issued. War is on the horizon.
Dying without regrets but it seems the world wasn't done with him. Naruto walks a new path as a Digimon Tamer and fight against the evil of the new world with new comrades. Disclaimer: I don't own anything. A.U.