The conflict between the Terrans and the Vers Empire of Mars has come to an end, enabling mankind to live in perfect peace. However, nineteen months later, the Vers princess makes a shocking public declaration: "the Terrans are a foolish race that covets resources, destroys nature, and is devoted to the pursuit of pleasure." As a result, she calls upon her knights to take up arms in order to protect their precious Earth, reigniting the raging battle between the two civilizations.