Fabric display designer Lin Zhiwei finds that the proposal she spearheaded has had her signature removed and its structural delivery altered without authorization. Instead of fighting back with emotions, she uses original drafts, revision logs, and physical tests to restore the facts step by step. Operations manager Tang Lan helps her complete the records, person-in-charge Zhou Heng pushes for error correction, and client Ye Qing insists on acceptance based on actual results. Ultimately, the project completes its rectification; signatures, compensation, and work permissions are fully implemented, and the team establishes clearer and fairer collaboration rules.