Job Change for Everyone: I, the Mechanic, Unlimited Mass Production

[National job transfer + system + passion + hidden profession + leveling + invincibility] During the job transfer ceremony, Su Chen embarked on the most promising career as a mechanic and became a laughing stock. "Mechanic? You're just a waste of money. You can't even build a basic mecha without money!" "Compared with me? I am a rare flame demon swordsman. I can smash ten mechas with one sword!" Facing the ridicule, Su Chen just smiled lightly. Just because he is bound to the [Infinite Mass Production] system, in the time it takes others to build a machine, he can build thousands of armies! Lack of fighting ability? Mass-produce millions of war mechas to form a torrent of steel! Lack of defense? Mass-produce the endless fortress and build an unbreakable defense line! Lack of support? Mass-produce medical machine swarms to heal the entire army instantly! When the alien army invaded and the top professionals were helpless, Su Chen's mechanical army descended from the sky and crushed everything! On this day, everyone knows that mechanics are the strongest profession!