Yang Huiwu is an inspector at the Zhubei-South Operation Workshop of the Zhuzhou Depot of Guangzhou Railway Group. His work nature is four shifts.

He happens to be working the evening shift on New Year's Eve and needs to arrive at the workshop at 18:45 to hand over his shift. This year's Spring Festival is the last Spring Festival in his working life. He will continue to pick up the inspection hammer that has been with him for 37 years to ensure safety.