Daisuke, Miyako, Iori, Takeru Takashi, Hikari, and Ken must reconcile new responsibilities with their Digimon partners. But Rui Owada, a mysterious young man, appears claiming to be the first human to partner with a Digimon.
The team discovers that when they grow up, their relationship with their Digimon will come closer to an end. They realize that the more they fight, the faster their bond breaks and the time to choose is approaching fast.