In the middle of the 21st century, Blue Star Wars broke out frequently, and superpowers were also forced to participate in the war. In addition to devastation, a super natural disaster was triggered, causing a certain superpower to be destroyed by natural disasters in an instant. In desperation, it has arrived They released all the nuclear weapons indiscriminately in the state of annihilation... Civilization was destroyed, and the life that was dying ushered in a new life. But more crises came one after another...