Duke Jing of Jin knows nothing about faithfulness and treachery. He listened to the slanderers and regarded the Zhao family as a family. Only one pregnant girl, Kim's sister, was left behind. After giving birth to the child, he handed the child over to his retainers Gongsun Chujiu and Cheng Ying, and announced that the child had died. Tu'an Gu don't believe it, search. Cheng Ying had to replace Wu Zhao with her own son. Fifteen years later, Duke Xiang of Jin was determined to fight Jiaping Zhao and killed Tu'an Gu.