The war between the Terrans and the Vers Empire of Mars has concluded, allowing humanity to enjoy their lives in a time of peace. Nineteen months later, however, the Vers princess makes a shocking public declaration: "the Terrans are a foolish race that covets resources, destroys nature, and are devoted to the pursuit of pleasure." Consequently, to protect their precious Earth, she summons her knights to take up arms, and the fierce battle between the two civilizations reignites. Slaine Troyard has found a place among the Martians, granting Earth a brief respite from the war against the Vers Empire. However, a peaceful resolution appears inconceivable. The various individuals who fought desperately for survival in the past now find themselves in the midst of yet another bloody and chaotic conflict, one that will forever alter the fate of humankind.