Siheyuan: The Eldest Son of the Yi Family, at the Southern Heavenly Gate from the Start!

I transmigrated to 1951 and became the biological son of the top uncle in the courtyard. From the start, Yi Hua bound himself to the Nantianmen System!

Goal: Build a Chinese shield covering land, sea, air, space, and cyberspace!

Novice gift pack delivered: Grandmaster-level fitter skills! Photographic memory! Blueprints for an improved T-34 tank!

Now that Yi Zhonghai has a biological son, will Love in the Courtyard still become a courtyard full of beasts?

Ordinary people get by with everyday family matters. There's no need for such hostility and scheming.

Watch Yi Hua serve his country in a backward era and do all he can to develop China!

This novel and its characters are entirely fictional. Any resemblance to real people or events is purely coincidental. Do not imitate.