In 2050, an asteroid more than 10 kilometers in diameter struck Mariana, the City of Romance. The ensuing earthquake-triggered tsunami submerged the Fifth Continent. The global climate changed dramatically, and dust kicked up by the impact blanketed the sky and blocked the sun. Temperatures around the world fell by about 15 degrees Celsius, plunging humanity into panic.
In 2051, arms dealer Herman entered Sonia, a poor country in the northeastern corner of the Second Continent, in the name of the United States.
In 2055, Sonia unified the Second Continent.
In 2059, the old government of Samba, the rainforest nation on the Fourth Continent, was overthrown, and a new government took power.
In 2060, an unknown force occupied every country in the southern part of the First Continent.
In 2061, all remaining lands of the Fifth Continent fell, except for the British Empire. That same year, Herman issued a proclamation announcing the establishment of the Human Renaissance Government and declaring war on the surviving nations.
That same year, the Northern Wartime United Nations, the Eastern Wartime United Nations, and the Western Wartime United Nations were established, and declared war on the Human Renaissance Government.
In 2074, thirteen years after the world became hell, our story begins.