Forty sets of children's reading shelves are about to be delivered, but the sample shelf has a looseness issue. Facing a tight delivery deadline, the young coordinator chooses to suspend assembly and work with the team to investigate panel dimensions, lock structures, assembly stress, and packaging hazards. Through repeated measurements and tests, everyone discovers that hidden safety risks lie behind tiny errors. In the end, the team decides to honestly inform the client of the progress, insists on reinspection and qualification before delivery, and also understands that workplace growth requires not only efficiency, but even more so responsibility and accountability.