In the world of Azure Star, where floating cities dot the sky, "Shape-shifters" reign by harnessing the energy of the Stellar Remnants. Society is starkly divided between the elite paradise of the skyborne cities and the hellish wastelands below—the Rust Belt. Lin Feng, an orphan scraping by in the mechanical ruins, is tormented daily as a punching bag for the enforcers of the Stellar Remnant Alliance, all because he was born without the genetic ability to awaken as a Shape-shifter. But in a desperate near-death moment, he stumbles upon and merges with an ancient Stellar Core, awakening an exceedingly rare dual-type transformation gene—both mechanical and biological. With claws that tear through steel, a feline form swift as the wind, a heavy artillery mecha that shatters oppression, and thunder-winged avian form that soars through the stars, his destiny changes forever. From that moment on, the underdog begins his epic counterattack. With sharp wit and biting sarcasm, he turns the tables on his tormentors. Guided by the gruff but kind-hearted Uncle Iron and aided by the sharp-tongued mechanic Su Xiaoxiao, Lin Feng even earns the loyalty of the cold, elite warrior from the very Alliance that once oppressed him. His journey takes him from the Rust Belt through the sprawling metropolis, into the floating cities, where he uncovers dark genetic experiments and unlocks the shocking truth of his past life as the ancient leader of the Shape-shifters. When the Entropy Legion descends from deep space, seeking to wield Stellar energy as a tool of annihilation, Lin Feng takes hold of the ancient core. He forges the "Stellar Abyss Rebellion," wielding the power to reshape time and space to confront the Entropy Lord, using his dual-type transformations to overturn the old order. This is a tale of vengeance that rises from the depths of hell to the pinnacle of the cosmos, a path of becoming the strongest—filled with blazing battles, heart-pounding action, and riotous humor. Where mecha engines roar, enemies fall. Beneath the starry sky, he is the sovereign.