Agumon, who had gradually drifted apart from Taichi, finally disappeared from Taichi and Yamato's sight one day, together with Gabumon. Just as they were about to return to the Digital World, a cry for help came from far away. It wasn't the voice of a human or a Digimon. Driven by curiosity, Agumon, whose thoughts usually ran in a straight line, poked its head toward the sound...
In another world, Taichi Yagami was just an ordinary elementary school student. One day, when the monster Gob came attacking, he discovered a strange egg had suddenly appeared on his bed at home. Not only did it crack open when he touched it, but a weird creature crawled out...
