Jiang Shisan has been working hard at Zhixuan Technology for five years. When he was promoted, Mr. Liu, who was parachuted from the headquarters, seized power and was demoted to assistant to "returnee" Wang Teng. He held back and refused to "put out fires" when the customer's system was paralyzed and the business collapsed. In the end, Mr. Liu and Wang Teng were held accountable for mismanagement and false resume reports, and Jiang Shisan was invited to join a major customer company and take charge of the technical center.