Before the Chinese New Year holiday shift, Xin Zhaoning refuses to cover another shift for Qi Manzhi. But Qi forges a key handover, leaves for vacation, and when a sudden burst pipe damages the company's warehouse, she shifts the blame onto Xin Zhaoning. Xin produces surveillance footage and records to reveal the truth. Afterward, as a series of business crises unfold, she remains determined to uncover the facts and establish accountability. Gradually earning her colleagues' trust, she is eventually promoted to Operations Director and helps the company improve its duty roster and handover procedures.