Episode 18 recap: The National Teacher contacted Cang Han Yu.

Someone came and told Cang Han Yu that the National Teacher had instructed him to assassinate the Empress, and now was a very good opportunity. Cang Han Yu got into a fight with this person and captured him. Nan Si also arrived and asked who he was and who had sent him to assassinate the Prince Consort.

The National Teacher came and told Cang Han Yu that it was time to assassinate the Empress, and now was a very good opportunity. Cang Han Yu asked the National Teacher what was going on, as everything had already been arranged. Did the Seventh Prince forget? Cang Han Yu was currently assuming the identity of the Seventh Prince, so he understood that it must have been planned by the National Teacher and the Seventh Prince. If he hadn't taken on this identity, he wouldn't have known about it.

Cang Han Yu said that he definitely remembered, he had just been a bit drowsy earlier. The National Teacher said that it was enough that the Seventh Prince remembered, and once he became the Emperor of the Southeastern Kingdom, he would make Cang Han Yu the Prince of Xiling. Nan Si felt that every time the Little Phoenix appeared, something was wrong. Perhaps Cang Han Yu was in trouble, so he hurried over and found that someone had just left.

Nan Si asked Cang Han Yu if he had noticed any suspicious person. Cang Han Yu said that he had heard some movement but didn't see who it was. They tried the ceremonial robes, and Nan Si felt that they had been too hasty last time. This time they had to prepare properly.

Someone claimed to have come to deliver something to Cang Han Yu, but Cang Han Yu got into a fight with this person and captured him. Nan Si also arrived and asked who he was and who had sent him to assassinate the Prince Consort. Unexpectedly, this person took poison and killed himself. Cang Yunze was very angry, feeling that they had now alerted the enemy, and it wouldn't be easy to kill them anymore.