Transform the Best Family, I Became the Richest Man in 1980

Time travel book + system + family transformation + business empire The business queen Su Wanwan died in a business assassination and was reborn in a period novel, becoming a cannon fodder female supporting character who could not survive more than three chapters. The identity of this female supporting character is extremely embarrassing: the eldest sister of a villainous family. Her family background is not good, her father is a speculative street kid, her mother is a bitter gambler, her eldest brother is a famous fighting madman, her younger sister is a vain green tea lover, and the original owner is planning to sell her younger sister in exchange for a bride price. The whole family cannot find a good person, and they are destined to be wiped out by the righteous hero and heroine. The system has arrived, and the task is not to clean up, but to "lead all the villains to become the richest man in the era". Penalty for failure: The whole family died suddenly on the spot.