the script had a gap. what happened to the assassination attempt on Chu Xuan Chen? and how did the emperor change? also how was Dan Er freed? and finally when the doctor went back to the future, did she remember? and saw who was greeting her? and when she came to, she saw Chu Xuan Chen and they stayed together? these gaps spoiled the sweet taste left by this drama until that moment. I think that a 4th cycle is needed so that many of the missing facts will be explained!