Lin Wanqiu: A modern independent woman, a cannon fodder female supporting character who was divorced and threw herself into a river in despair due to poverty and poverty in the adult era. Tough character, smart and pragmatic, good at observation and learning, have modern knowledge but not against nature
Male protagonist (original male supporting actor) Chen Weidong: technician (later engineer) of the steel rolling mill. Silent, cold on the outside but hot on the inside, with a strong sense of responsibility, strong hands-on ability, and a technology geek. Due to family composition
