Katori Shigematsu

The great computer Yggdrasil rules over the Digital World. But dissatisfied, it creates the X Program to destroy the old world and create a new one. The X-Digimon flees from Yggdrasil's servants, the Royal Knights, and searches for the secret that lies within.

A few years after the adventures of the Chosen Children in the Digital World, a new batch of Chosen Children are summoned to save the Digital World. An evil ruler known as the Digimon Kaiser, or Digimon Emperor, is forcing the Digital World's Digimon into enslavement. The new group of Chosen Children, with the help of their Digimon, then begin a journey to stop the evil Digimon Emperor. (myanimelist.net)

After years of inactivity, the DigiDestined regroup with their Digimon to save their world, but have the years changed their characters too much? (imdb)

After years of inactivity, the DigiDestined regroup with their Digimon to save their world, but have the years changed their characters too much? (imdb)

After seeing Meicoomon's abrupt transformation, Agumon and the other Digimon are kept isolated in Koushiro's office in order to prevent them from infection, but signs of infection begin to appear in Patamon. (imdb)

As the DigiDestined try to reestablish their friendship with their rebooted Digimon partners, they briefly come across Meicoomon, who has retained her memories of Meiko despite the reboot. (Wikipedia)

When Meicoomon starts causing trouble in the Real World, the children must decide who to save.

The DigiDestined confront Ordinemon in order to stop the destruction of Earth.