Lin Wantang, a former design director whom the entire company mistakes for a cleaning lady, has quietly endured this for three years, all to uncover the truth behind the company’s plagiarism. The cold-faced COO, Shen Zhiyan, treats her like dust, but a series of data anomalies gradually move him as he witnesses her quiet persistence. When an intern’s photo of the “cleaning lady’s goddess-like designs” sets the internet ablaze, the drawings Chen Bo kept hidden, Zhou Moli’s recorded betrayal, and Huo Ting’s falsified records all come to light one after another. It turns out she isn’t a cleaner, but a shining talent in the industry whom they buried with their own hands. The day the truth is revealed, the entire building falls silent.