The plot of "One Thought of Guanshan" can be introduced in episodes, which can be categorized as follows: Episode 1, Episode 2, Episode 3, Episode 4, Episode 5, and Episode 6.
I. Episode 1
At Sun Pickup's birthday banquet, Han Shizi takes a fancy to the dancer Ren Ruyi, and in order to obtain information, Ren Ruyi pleads with Han Shizi to take her back to his house. In the middle of the banquet, the master of the Six Roads Church came to look for spies, Sun Picked up in order to get out of the way, all the dancers pointed out as spies, the people of the Six Roads Church will be taken away from the dancers, during which the identity of the inadvertent exposure, Ren Ruyi can only be all the Six Roads Church Tei rider silenced.
Lou Qingqiang brings the news that Wu's army was defeated by An's army at Tianmen Pass, and the Emperor has been in danger. The first minister, Zhang Song, proposes that Yang Xingjian, the king of Danyang, take over the throne. Xiao Yan, the queen of Wu, receives a letter from her cousin, Xiao Ming, confirming that the king is still alive. Zhang Song proposes that the Danyang King should continue to supervise the country, and after the Empress gives birth to a child, he will decide on the state system depending on the gender. Zhang Song wants to use Ning Yuanzhou to find out if the emperor is still alive, but he realizes that Ning Yuanzhou has already been sent to the battlefield.
The second episode
Zhao Ji threatens Ning Yuanzhou with the old Ning family house and Yuanlu's life, and Ning Yuanzhou shows up to save Yuanlu. He threatens Ning Yuan Zhou to go to An Guo to rescue the saint. When Ning Yuan Zhou learns of the whereabouts of his brothers, he is no longer interested in the imperial court and only wishes to bury his righteous father and stay away from the capital. Afterwards, he forces Ren Ruyi out of the coffin.
Ning Yuan Zhou concludes that Ruyi is the identity of the White Sparrow of the Zhuyiwei, Ruyi in order to be able to stay in the Ning Residence, deliberately revealing the identity of the White Sparrow suspicion, Ning Yuan Zhou forced Ruyi to leave, but the other party is unwilling to leave only to give up. The Queen needs to find a person to be the ambassador to the Emperor, and decides to find a person from the royal family to succeed to the name of the late Emperor.
Three, Episode 3
Princess Yang Ying asked herself to be the ambassador for the Emperor for the sake of her love. On the other hand, Ren Ruyi hoped that Ning Yuanzhou could take her out of the city, and Ning Yuanzhou agreed to do so. The next day, Ning Yuan Zhou takes Yuan Lu and Ren Ruyi out of the city to tell Ren Ruyi the secret, but Ren Ruyi pretends not to understand. After Ning Yuanzhou took Yuanlu to say goodbye to Ren Ruyi, he encountered Lou Qingqiang and his men assassinated him. Ren Ruyi heard the sound of the assassination, but she showed up to save Yuanlu, and in the end, the three of them didn't escape from the pursuit.
Later, Zhang Song said Yang Ying asked to go on a mission as a prince, he did not care whether Ning Yuanzhou can welcome back the emperor, only hope that Ning Yuanzhou can get the emperor's handwritten decree on the empress in the womb of the Prince, and then he supervised the country's imperial decree.
Fourth Episode
Ruyi wants to ask Ning Yuanzhou to help her find out something, but Ning Yuanzhou refuses to help and thinks that there is no shortage of Ruyi's assassins in the mission, so the two of them go their separate ways. Afterwards, Ning Yuanzhou took Yu XIII and the other four members of the delegation to leave Wu Kingdom for An Kingdom. Ning Yuanzhou catches up with Yang Ying and the others and arranges for Sun Lang to guard Yang Ying's safety. Ning Yuanzhou guesses King Danyang's wish and in order to help Yang Ying, Ning Yuanzhou asks Ruyi for help.
Ren Ruyi designed to lure out Mr. Yue, and when Yulang saw the danger and fled, Mr. Yue revealed himself to be the Purple Envoy of Wu Kingdom, Yue Sanniang. Afterwards, Mr. Yue Sanniang saw that Mr. Ren Ruyi had not yet recovered his inner strength, so he took action against Mr. Ren Ruyi. At the critical moment, Mr. Ning Yuanzhou and Mr. Yuanlu came to help. Ning Yuanzhou agreed to cooperate with Ren Ruyi.
V. Episode 5
On the way, Ren Ruyi teaches Yang Ying all the important points of An Guo politics, and is very strict with her. Ren Ruyi can see that Yang Ying is used to obeying others and also proposes a different way of life as a woman. Yang Ying learns from Ning Yuan Zhou that Ren Ruyi has told her the truth, and she is saddened by the fact that she has been abandoned by her relatives. Yang Ying uses her menstruation as an excuse to send Ruyi away, and then charms Ning Yuan Zhou to escape back to the capital. Afterward, Ren Ruyi reveals her heart, and Ning Yuanzhou expresses his willingness to agree to the promise for the time being.
Sixth Episode
Ren Ruyi brings back Yang Ying, and Ning Yuan Zhou backtracks on the spot. In the evening, after waiting for everyone to fall asleep, Ning Yuan Zhou realizes that Ruyi has disappeared. Ning Yuanzhou advised Ruyi not to leave the mission without authorization in the future. The next day, Ning Yuanzhou brought Ruyi back to rejoin the mission, and he was able to help Ruyi fabricate the reason for her departure, so that everyone did not become suspicious of Ruyi.