Guier lost her memory and became Concubine Enxiao.Ergui told Guier that they have a close relationship and that she is a dancer by profession.They meet at the King's birthday party, where Gui'er is a dancer, and they begin to like each other.Since Guier lost all her memory, she believed Ergui's words.

At the same time, the Neng Nei Guan Nai Guan realized that they had been deceived, that the personality of Prince Sizu had never returned, and that they had been dealing with evil for at least four days.Ergui hopes that the concubine canonization ceremony will be held immediately because he has not slept for four days and is worried that Si Zuxian will let Guier leave after taking over.

However, Gui'er still doubts her situation and asks maid Hong Jun if she would like to become the crown princess.Hong Jun did not provide any important information, and that night, Guier was surprised to find that she knew martial arts and had rough hands.She wonders if she is a dancer or a warrior.

Ergui tried his best not to fall asleep, including taking a bath with ice water, which made people around him worry about Si Zuxian's health.They visited the wizard Chuta and begged her for help, and she gave them incense to help Ergui sleep.

The next morning, Si Zuxian returned to his body, and Egui looked angrily at Neng Neiguan and Naiguan happily embracing the real prince.The first thing Si Zuxian wanted to do was go to the fabric store, but he noticed that Ergui was trying not to sleep, and he realized there must be a reason.Chi Quanshu and Neng Neiguan told him what Ergui was doing and took him to see Guier.

At the same time, Gui'er is trying to escape from the prince's palace, and Concubine Zhao Ming discovers during a secret investigation that this woman is different from the dancer chosen by the king.The prince came to Concubine Enxiao's residence and asked to talk to Guier alone.

Soon after, Neng Naiguan rushed in and told them that the king had summoned them.Si Zuxian wanted to know why, when Neng Naiguan told him that the woman Ergui took away was the dancer chosen by the king.

On the way, Si Zuxian took some time to tell Gui'er to remain silent when they arrived in front of the king, and when they looked into each other's eyes, Gui'er caught a glimpse of the tailor she met in the tailor shop, and sheConfirming that the prince's personality was back, she agreed to listen to him.

The king began to ask Si Zuxian about the change of concubines, but Si Zuxian remained quiet.The king is disappointed, he thought Si Zuxian's actions symbolized him becoming a man, but now he is back to his nerdy, timid and cowardly self.

After the meeting, Si Zuxian asked Guier to stay and he would help her find a way to leave the palace.At the same time, Princess Jinhua reported to her father Chen Wuda that the king was satisfied with the dancing concubines.She said she would make sure that Gui'er could not attend the canonization ceremony and that there would be no blood on her.

Gui Er was confused by her meeting with the king and her recent interactions with Si Zuxian.She paces back and forth, wondering what she sees in that man that makes her like him, she recalls King Sizusheng's face and thinks he looks familiar, and the image of him killing her father that day appears in her mind, but she couldn't connect them.

Si Zuxian took away the drawings that Guier had modified for him. The image of the woman in the tailor shop and the image of the concubine came to his mind, but he did not agree that they might be the same person.He goes to the workshop to clear his mind and asks to be sure that Gui Er doesn't cause trouble.Guier slipped out and followed them to the workshop. She couldn't help but smile, watching Si Zuxian working and smiling in his own field.

After Si Zuxian helped Guier pay for the repair costs of roof damage in the market, he asked her to leave.Guier is disturbed by the prince's attitude and wonders if he has a dual personality, but she still agrees to leave.

As she walks around the market asking people who she is, she notices some soldiers abusing a woman and she helps her escape.Guier tries to escape from the men, but they close in on her, and Si Zuxian arrives in time to help her escape.

Si Zuxian changed his mind and decided to let Guier leave.Gui'er won't let Hong Jun be exiled or beaten because of her, so she agrees to go back with him.On the way, Si Zuxian thought he would use Gui'er to deal with Ergui, while Gui'er thought she would escape after helping Hong Jun leave the palace.

When Si Zuxian wonders why he made her some clothes, Ergui pulls Si Zulong out to talk about Guier.Ergui thinks that Si Zuxian must be trying to use Guier to get close to him, but he insists that he only respects her because he likes her.

The next morning, Guier was taken to the king's interrogation room on suspicion of assassination.The evidence is the dress and headscarf she wore when attending the king's party.The king asks her if she is an assassin who infiltrated the king's birthday party with the intention of harming the king, but since she has lost her memory, she has no idea what they are talking about.

Chen Wuda brought another woman before the interrogation, claiming that she was the woman chosen by the king on the day of the party.However, Concubine Zhaoming and Si Zulong recognized the woman and knew she was not among the dancers.Si Zulong thought this might be Chen Wu Da's plan, since the king never remembered the women he slept with.The fake dancer said she saw Gui Er wearing an assassin's clothes and entering the king's bathroom.

Surprisingly, the prince comes in and admits that Gui Er is indeed an assassin.