Does a good repairman have a second department?

No, The Beautiful Maintenance Worker is an urban novel written by Sharla Cheung, also known as the Property Maintenance Worker. The novel tells the story of Lao Wang, whose real name is Wang Jun, who went to the city to defect to his cousin and found a job in water and electricity maintenance of property in a high-end residential area not far from the residential area. As of June 4, 2022, the author didn't publish the information of the second book, so it's a pity that he didn't.