This Ming Dynasty Is Very Problematic

Carriages and cars speeding on the streets, steam trains speeding on the railways, airships floating in the sky, and all kinds of races that only exist in fantasy. Su Qi, who had seen all this, only let out a cry from his soul. "You told me this is the Ming Dynasty?" And all of this stems from the secret door that stands outside the capital. Su Qi, who changed his job to become a mechanic, seems to be able to become a trendsetter and lead new changes.