No. During the army-wide campaign to learn from Wang Cheng, Wang Wenqing recognized Wang Fang, a member of the army's art troupe and Wang Cheng's sister, as his biological daughter. So Wang Cheng and Wang Fang are Wang Wenqing's children. "Heroic Sons and Daughters" tells the story of how after soldier Wang Cheng died on the Korean battlefield, his sister Wang Fang continued to fight with the help of political commissar Wang Wenqing, and was finally reunited with her adoptive father Wang Fubiao and biological father Wang Wenqing.