Which episode was Su's lyric sleep during Yongzheng period?

The "Su Ci" mentioned in the question should be "Su Shunqing". Both of them are fictional characters in TV dramas, and there is no such person in history.

There is a lot to say in this episode. The second half is about Liu Molin. On the day Cohen announced it, even the inn was promoted to a happy event. First, Wang Wenzhao was the top student in high school, and then Yin Jishan won the second place. The two of them left happily, leaving Liu Molin extremely depressed. In court, Yong Zhengdi and Huang Anxiang (renamed Yun Xiang at this time) argued with the examiners late into the night and decided to admit Liu Molin. At the same time, Su Shunqing came to the inn, said he would follow Liu Molin, and brought a silver ticket of 12,000 yuan. In the early hours of the morning, the brothel found Su Shunqing fleeing, and her wife took people to Liansheng Inn to arrest people. They met Liu Molin and Su Shunqing. They hugged naked and didn't get up. Liu Molin negotiated with this lady, and she offered 12000 USD. Liu Molin took out the silver ticket and redeemed Su Shunqing. Just after the excitement subsided, the sedan chair, a worker who brought good news, announced that Liu Molin High School was exploring flowers. Liu Molin couldn't believe it. The worker told him that the emperor pushed his way through the crowd and picked up his paper from the falling one. Liu was the kind probe of the emperor. Su Shunqing immediately in anger, at a loss. Liu Molin comforted Su Shunqing and said that he would rather not explore flowers. Su Shunqing said that ten years' cold window can't be famous, not to mention that the emperor hand-picked flowers and said to wait for him. Liu Molin asked the innkeeper to take good care of his wife, and the innkeeper readily agreed.

Extend it.

Previously: Liu Molin was brilliant, but he was criticized by Qingliu for admiring Su Shunqing. Although he did well in Cohen's exam, he was disqualified by the examiner. Yongzheng was about to promote talents at this time. He cherished the talents in Liu Molin very much, so he was able to squeeze through the crowd.

After Liu Molin entered the DPRK, Su Shunqing felt humble and unwilling to drag him down, so she had to return to the brothel. Liu Molin begged Yunxiang to help Su Shunqing get out of the fire pit completely. Liu Molin was left by the emperor to accompany him on his southern tour. Liu firmly supported the emperor and offended the people in the so-called case of royalty and national interests triggered by Tian Wenjing. Later, Liu Mo Wang Zilin Suibao traveled to Li Hong, and the Three North Redstone sent someone to assassinate Li Hong. Liu Molin was killed to protect Li Hong. Li Hong begged the emperor to give Liu Molin's widow Su Shunqing a royal wife. However, by the time of the imperial edict, Su Shunqing, who had heard the bad news, had gone to Qingchi and died heroically.