Universal Job Transfer: I Was Selected by the Weakest Job?

The game blends into reality, monsters are rampant, and mysteries descend. In order to resist the coming disaster, everyone will be given a profession after graduating from school in order to survive in this world. Chen Chen, who traveled to this world, was given an extremely rare hidden profession - mechanic by the job transfer dashboard. But this world has no technology at all, and even the most basic production materials cannot be collected. All those who were followed into this profession have changed careers. Just when Chen Chen was frustrated and planning to commit suicide, the system in his body suddenly awakened, bringing him the necessary materials and also unlocked many powerful design blueprints! Giant Titan mecha, anti-gravity element missiles, sky protection system... When he reappeared and the torrent of steel around him swept away everything, the entire continent fell into a 'machinist' craze. Don't imitate me, I am blessed by a divine weapon! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.