In the distant interstellar future, the galactic federation "Star Alliance" is falling apart, and mecha competition is sweeping the human world. Lin Bufan, a down-and-out young man, accidentally joined the mecha army after an accident, and met the genius girl Eiffel, the honest brother Zhao Jianshi and other partners. A destructive experiment that went out of control made them wanted criminals in the galaxy. The three parties of the Covenant, the Black Blade, and the Resistance fought, dealing with "own mistakes" and ingenuity. Lin Bufan encounters adventures repeatedly with his wit and humor, and his partners continue to break through themselves in despair. When the ultimate crisis comes and the enemies and truth hidden in the darkness emerge, they must use the strongest mecha to unite all available forces to protect their cherished home...
