Taiki and his friends have an encounter Kiriha Aonuma and his MailBirdramon as MadLeomon begins his next plot.

When Akari, Taiki, and the others learn that other humans are in the Digimon World, they decide to contact them to see if they know how to leave. Shoutmon tries to trick them into wanting to see with food and fun, but when Taiki learns he is merely using them to become the Digimon King he decides he shall leave permanently also. When MadLeomon attacks the Village of Smiles and ends up merging with Orochimon, Shoutmon and Taiki must put aside their differences and learn to work together if either of them is to survive.

One day, a Digimon Xros Loader appears before Taiki Kudou, an exceptionally warmhearted seventh grader, along with Shoutmon’s voice asking for his help. The D Xros Loader is a “Key Item” that is capable of transferring power to Digimon through “Digixros” fusion. He was chosen as a “General” to control it. Taiki and his friends are thrown into another world, the Digital World.