The interstellar expeditionary force was completely wiped out, and the Zerg flooded the last mothership with corpses. Everyone died in the battle, except for the most useless deep space starship maintenance officer - Ye Linyuan.
There is no mecha, no genetic unlock, just a maintenance wrench that has followed him for ten years. But when he turned the damn screw of the core furnace with his bare hands, one hundred thousand scrapped mechas on the wreckage of the mothership woke up at the same time.
"This thing... Is this how it should be repaired?"
Starting from scrapped mechas in the junkyard, he assembled them. If others evolved once, his mecha would evolve a hundred times. When the broken fleet fought its way back to the human-occupied area, the Zerg Mother Queen finally panicked - this man full of mobile phone oil repaired his starship into an immortal fortress.
