Seeing his partner Mochizuki Meiko was injured by a mysterious man with the appearance of Gennai, Mainemon started to run wild again. "I can't let you be born in this world..." The Mainemon that disappeared from the real world was the distortion itself. It was Nishijima Daigo who had too much power and was the key to destroying the world, and Hackermon who appeared at the place of Dr. Mochizuki, gradually revealed the truth. The constant that ensures the harmony of the world regards the now too powerful Mainemon as a danger and wants to cut it off. With the appearance of the rampaging Mainemon, the real world begins to enter the countdown before destruction. The places affected by it have undergone changes one after another. The Digimon that appeared due to the distortion are waiting for that moment to come. The chosen children are rejected by the abnormal digital world and return to the real world, but they are chased by people because they are with their partner Digimon. Everyone is isolated and helpless, but they still desperately seek countermeasures. At the same time, Meiko continues to worry alone. The voices of her companions and Digimon could not reach her heart, which was hit by the heavy burden she carried... After that, cruel fate even approached Yagami Hikari, whose soul was more straightforward and delicate than anyone else.