Chen Yansen, a successful 34-year-old businessman, unexpectedly travels back in time to 2010, just after the college entrance examination, and returns to his 18-year-old body. While getting a haircut at a barbershop, he accidentally activates the 'Salary Fire Ascension System.' The system allows him to establish employment relationships with others and earn 'Humanity Fire' by paying salaries. This energy can be used to improve his physical fitness, mental abilities, and skill experience.