Under the neon lights of the modern city, steam pipes and mechanical gears are quietly intertwined. << Lu Jin >> is the most insignificant son-in-law of the Su family. His mother-in-law dislikes him every day for being a soft-boiler, and makes him the butt of jokes at family gatherings. Even his wife thinks he is as mediocre as a glass of boiled water. No one knew that this man who hung around the stove and played with scrap parts was once the God of Mechanical War who led the interstellar steam army and wielded the Pirate King. The nano-steam core sleeps in his body, and he can assemble destructive-level machinery with his fingertips. These are the glory that he deliberately keeps away from dust. Until the Su family was suppressed by powerful people and was on the verge of bankruptcy, and those who ridiculed him stepped forward - Lu Jin finally stopped pretending. When the steam turbine roared and tore through the night sky, and the steel armor glowed coldly in the moonlight, the former mechanical myth reappeared, turning all contempt into a joke. Who said you have to bow your head if you have a son-in-law? His mechanical punch can not only break through secular prejudices, but also support the entire Su family!