Siheyuan: Infinite Upgrades and Inventions, Taking Off at Last

【Courtyard, feel-good fiction, System, leveling up, inventions, period】 Li Dong transmigrates into the courtyard with Yu Li as his wife from the start. He also gets bound to an invincible System! It is a new era of progress. He is focused on inventing things. Why waste time fighting back and forth with the beasts in the courtyard? His goal is to become the richest man in the country!