In the distant interstellar universe, the interstellar empire was violently attacked by alien civilization. The S-class mecha "Annihilator" was easily destroyed, the defense line collapsed, and the capital star was in danger. Imperial Marshal Callander had no choice but to ask for help from the Qinglong Realm's immortal civilization, which was regarded as "primitive feudal superstition." The protagonists Chen Weixing and Lin Qingmei, one longs to protect the glory of the interstellar empire, and the other pursues the peak power of mecha cultivating immortals. They join hands with the immortal cultivating civilization when the empire's life and death are at stake. However, some forces within the Interstellar Federation colluded with foreign races for personal gain, and at the same time, the empire's top officials were full of misunderstandings about immortal cultivators. The protagonist not only has to face the dilemma of insufficient strength in the early stage, but also has to make a difficult choice between the opposing camps of interstellar forces and immortal civilization. As the war progresses, they continue to grow in the fusion of mecha and immortal power. However, what awaits them after victory is the many difficulties in the integration of the two civilizations. An interstellar adventure full of passion, struggle and challenges begins.
