[Digimon 02] the Beginning of Onlooker~onlooker~

On the night of August 3, 1999, Oikawa Yukio watched the children being sent into the digital world. Feeling abandoned, he cried and shouted uncontrollably. However, an unexpected surprise attack brought him to the world four years later from that night. He had no idea what had happened in the past three or four years and what had happened to him. Who can give him the answer——?