Qiu Ping Is Still Alive, Beyond the Spy's Cover

The night I finished watching The Disguiser, I couldn't sleep.

Cui Ping stood on the hillside holding a child, waiting for Yu Zecheng. I watched that scene three times. But what kept going around in my head wasn't where Yu Zecheng had gone. It was something else: Chen Qiuping, Cui Ping's younger sister, a sacrifice mentioned only in passing in the original. What if she hadn't died?