In 2147, a natural disaster struck. Meteor rain tears apart cities, geomagnetic storms destroy order, mutated creatures crawl out of the ruins, and human civilization is crumbling. In this apocalyptic torrent, Xu Lie, a street gangster who was supposed to die, unexpectedly awakened a strange ability - he could hear the pulse of the "mecha heart". The Federation urgently launched the "Apocalypse Project" in an attempt to use mecha troops to fight against natural disasters. But it was soon discovered that there was a deeper conspiracy hidden behind this disaster. Xu Lie fought to survive in the underground black market, picked up the remains of the first mecha in the ruins of the laboratory, and narrowly escaped death among the mutant beasts. Not only can his mecha transform at will, it can also evolve by swallowing other mechas. Whenever he is on the verge of death, he can see the mysterious code flashing in the mecha's heart, as if guiding him to some ultimate truth.
While the mecha generals of the Federation were still fighting for power, Xu Lie was already driving a mecha made of garbage, fighting his way through the ruins of the city. He doesn't care about saving the world, he just wants to survive - and in the meantime, pull down all those who are above him. Until one day, he discovered that his mecha heart had the same origin as the core energy source that caused the natural disaster. And the space crack in the sky that will never heal is slowly opening an eye...
