Following a period of peace after the Terrans-Vers Empire conflict, the Vers princess shocks the public by proclaiming that Terrans are a reckless species bent solely on hedonism and environmental destruction. In an effort to safeguard Earth, she orders her knights to take up arms and resume hostilities with the Terrans. Despite Slaine Troyard's previous efforts to broker peace as a former Martian ally, a new ceasefire seems unlikely. The survivors of the prior war are now thrust into a vicious battle that will determine humanity's fate.