Reborn as a King Snake: After Leaving the Forbidden Zone, I Pummel Mecha

[Decisive and ruthless + alien races from the stars + age of giant beasts + mecha and high-level martial arts] In 2032, a meteor falls on Silverwhite Star, ushering in the age of martial artists. Beneath the stars, countless ferocious beasts stampede, and kilometer-long monsters stride through the cities. Above the roiling clouds, points of starlight flare as cold starships sound their merciless horns. Broken dawn light falls, accompanied by countless cold mechs. The ferocious beasts retreat, and humanity cheers amid the ruins. At the pinnacle of the world, humanity's strongest are forced to sign the “Planet-Selling Treaty.” The starships depart, leaving behind a cold declaration: “The treaty is binding. From this day on, Silverwhite Star and everything on it belong to the Azureblue race!” Sixty-three years later, in the southwest of the Yu Kingdom, in a remote little city. A human watches excitedly as a Black King Snake fights inside a beast cage. Wang Yu slowly wakes up from the snake's body...