In his previous life, he was a spineless fool, schemed against and exploited by the whole courtyard, and dragged down by Qin Huairu for half his life, only to end up miserable in old age.
He Yuzhu returns to the turbulent Siheyuan of the 1960s, awakens a sign-in System, and gains a spirit spring and a vast supply of goods. See how He Yuzhu wins people over, divides his enemies, and outsmarts the courtyard's pack of bullies.
The logic is confusing, verbose, and repetitive.