距離太一與亞古獸相遇、前往數碼世界冒險後超過十年，世界已漸漸知道「被選中的孩子們」的存
在，在現實世界中看見數碼精靈也不是稀奇事情。而太一也成為了大學生，與大和等人各自踏上自
己的人生路。就在此時，專門研究數碼精靈的學者梅諾亞和井村，就神秘數碼精靈「艾奧斯獸」向
太一等人求助。為了解決事件，被選中的孩子們再次集結，卻在對戰期間從梅諾亞口中得知一個驚
人事實——在被選中的孩子變成大人之時，其拍檔數碼精靈將會消失。
不戰鬥便無法拯救同伴，然而強行戰鬥只會提早與拍檔離別。
面對無法改變的宿命，太一與亞古獸一同決定出的答案會是？
It's over ten years since the summer when Taichi met Agumon and the others, and they had their adventure in the Digital World. The worldwide existence of the DigiDestined has gradually been acknowledged, and the sight of Digimon in the real world has become less unusual. Taichi has become a college student, while Yamato and the others have figured out and started down their own paths in life.During all this, certain incidents begin to occur around DigiDestined worldwide. Menoa and Imura are scholars whose area of study is the Digimon who appeared to Taichi and the others. These two seek assistance from the group, claiming a Digimon called Eosmon is the cause of the incidents. Taichi and the DigiDestined come together once again so they can resolve the matter. But during the battle with Eosmon, something goes wrong with Agumon's and the others' evolutions. When Menoa sees this, she informs Taichi's group of a shocking truth: When a DigiDestined becomes an adult, his or her partner Digimon will cease to exist...
