[Rebirth + Historical setting + Single female lead + Hardcore technology + No system + Stay-at-home dad]

In his previous life, he was an internationally renowned national treasure-level engineer, but he lived a lonely life and died in regret.

When I opened my eyes again, I was back in 1980.

The family was destitute, his wife and daughters were emaciated from hunger, and the creditors were about to take away their only iron pot.

Looking at his wife's hands covered in chilblains and his timid daughter, Li Weidong's eyes reddened.

In this lifetime, I will never let my wife and daughter suffer the slightest grievance!

No system?

With top-notch repair skills from his previous life, this is the ultimate cheat code!

...

The neighbor's old, broken radio? I took it, replaced the capacitor, and it was brand new. I sold it for half a month's salary!

An imported tractor that the county couldn't repair? He fixed it by hand in half an hour, shocking the entire county!

A discarded black-and-white TV at the junkyard? Once repaired, it will become the only entertainment center in the whole village!

Starting with repairing home appliances with a screwdriver, he went on to contract factories, develop his own chips, and build a business empire.

Li Weidong: "In this era where gold is everywhere, what others see is scrap metal, but what I see is all money!"