Administrative clerk Wren Carter handled the company's Customs Compliance work for six years, avoiding 50 million yuan in losses. New supervisor Finn Fletcher cancels her allowance and forces Rae Shaw to take her position. Wren Carter turns the tide during 1 billion yuan foreign trade order negotiations, winning trust and the general manager's attention. She declines promotion, establishes Yinuo Customs Compliance Studio, and becomes an industry leader.