When Wisely (played by Michael Tao) was asking his friend Qi Bai (played by Jerry Chang) on whether someone had stolen his DNA and cloned him after meeting his likeness, Wisely pointed out after Qi Bai dismissed his question on how scientists have cloned a sheep. Wisely could have been referring to Dolly the sheep from two years before in 1996 the drama series was aired, when a female sheep became the first mammal in the world to be cloned by scientists from the University of Edinburgh, before the sheep died in 2003.