This is a Digimon fan work. It is an adventure of seven children who were summoned by the "World Tree" and came to the digital world with the ultimate goal of defeating the seven demon kings. During the adventure, children will continue to grow, discover the truth of the incident, communicate with various forces, and find the final answer. What does it mean to meet a Digimon, and what does the evolution of Digimon mean? The answer may be unexpected. This is a story of mutual rescue. The protagonist Ryusuke, who has a somewhat withdrawn personality, meets Hallmon, who is bullied by other Digimon. With the help of Ryusuke, Hallmon gains the power of evolution and will eventually become the eighth demon king above the seven demon kings. He is both a hero who saves the world and a demon king who rules the world.
