Qin Dawei is a technician at Haishi Machinery Factory with a monthly salary of sixty-seven yuan and fifty fen, plus substantial bonuses. He is the eldest brother in his family, responsible for supporting fifteen younger siblings, seven full siblings, three step-siblings, and five half-siblings. He has internal injuries that require hospitalization. He is described as having a foolish grin and being deeply in love with Su Juanjuan. He plans to elope with her to Haishi, where he will have a separate dorm room provided through Researcher He's project. He is grateful to Chen Qing and the He children for saving Su Juanjuan's life. His father is described as strict but fair, with Qin Dawei being the best-dressed in the family despite giving all his earnings to their father.
