[Digimon] Headwind

After Kanbaru Takuya and the other five people returned to the human world from the digital frontier, Koizumi returned to Italy, but was inexplicably troubled by a terrifying voice from the bottom of his heart. He was lost alone in the pale world and lost contact with the five close friends who had adventured together for three years. Four years later, the children who were ignorant of the world have grown into boys and girls, entering junior high school and preparing for the first important exam in their lives. Five teenagers actually saw the image of Koizumi asking for help at different times on the same day. Does all this have anything to do with the digital world? Can the fighters of the past join hands and reunite at the forefront of digital?