Synopsis: The story will trace back to 2001, 18 years ago. In 1978, the Battle of Barioregus resulted in a devastating defeat, followed by the fall of Poland the next year. Due to these two reasons, East Germany became the frontline of European defense in 1983, with fierce warfare beginning to spread. The East German troops found their defenses compromised due to the large-scale offensive of the BETA clusters. The number one tactical mech unit of East Germany, the 666th Tactical Mech Squadron, known as the Death Black Mark, is ordered to eliminate the light-class BETA positioned at the rear with only the meager strength of 8 units, in an attempt to turn the tide of battle. Faced with overwhelming numbers of BETA, relentless inclement weather, and the heavy pressure of national authority imposed upon them, how will their fate unfold under such harsh conditions?