Episode 17 recap: Xiao Quan utilized trade agreements to design the southern region.

Yan Zhang Yun accompanied Princess Jiayang on a shopping trip, where she carelessly pointed at and purchased numerous gifts, even buying an eight hundred tael belt as a present for Yan Zhang Yun. The entire day of shopping left Fushao, who had accompanied them, feeling exhausted. Afterwards, Fushao, wanting to prove she was stronger than Jiayang, began exercising and dieting, resolving to lose 5 jin. To motivate herself, she even made a bet with her friends, who would eat meat in front of her every day in hopes of earning the silver.

Daoge now immerses himself daily in the fragrance of smoked imperial incense, claiming it refreshes his spirit. During her workout, Fushao inadvertently caught a whiff of the scent and followed it to the princess's courtyard, where she saw a table of barbecue and couldn't resist eating some. Fushao discreetly asked the princess why she favored Yan Zhang Yun, and the princess said it was because of his shining eyes, and that she had not forced their relationship, but rather it was due to her own charm.

The princess gave Fushao a box of imperial incense and some facial cream when Fushao mentioned feeling unwell. Delighted, Fushao hugged the cream as she left, but Yan Zhang Yun took the incense, saying Fushao should not use it. Xiao Quan had presented the trade agreement he had discussed with the ministers to the emperor, who outwardly praised it but then tasked Yan Zhang Yun with reviewing it, whereupon he discovered imperial incense in every clause, finding the scent suspicious.

Daoge's complexion looked poor as he suffered the effects, often feeling drowsy. Despite Fushao's diligent dieting, she had actually gained 3 jin. Wei Tian Jiao demanded she honor their bet, and though Fushao tried to feign pity, her friends saw through it. When Yan Zhang Yun arrived and learned of the gambling, he cited regulations to fine them.

Not only did Wei Tian Jiao's group fail to earn any money, they ended up losing a substantial amount themselves. Afterwards, Yan Zhang Yun transferred the fines to Fushao, telling her to use it to buy food. Delighted to receive money for her favorite meat dishes, Fushao left, only to encounter the princess warmly inviting Yan Zhang Yun to Ningguo, which angered Fushao as she departed.

Disheartened, Fushao went to Chuyue's room, where Chuyue was calmly playing the zither. Fushao recounted Jiayang's actions towards Yan Zhang Yun, but Chuyue was unperturbed. Wangyou had been constantly by Chuyue's side, and Yan Zhang Yun had even redeemed her, bringing her to continue caring for Chuyue, which made Chuyue very happy.

At dawn, Fushu purposefully wore her official uniform to try to seduce Yan Zhangyun. She came to the military camp and had a sudden idea - she planned to recruit some strong bodyguards to use the "beauty trap" to seduce the princess, so that Yan Zhangyun would be hers. After Fushu's earnest persuasion, everyone refused to volunteer, except for Changsheng who eagerly signed up.

In order to give Changsheng a chance to be the "knight in shining armor", Fushu specially arranged for a few people to flirt with the princess. When Changsheng appeared, he successfully defeated them and, according to the plan, embraced the princess. But then the camera switched, and the princess's personal bodyguards mistook Changsheng for the mastermind, and beat him up severely.

In the middle of the night, Fushu went to find the princess and deliberately spoke ill of Yan Zhangyun in front of her, but the princess found Fushu's behavior even more interesting. Fushu didn't expect this plan to backfire.

The princess advised Fushu not to "hang herself on the same tree". When Yan Zhangyun learned that Fushu had gone to the princess's room, he directly took her away. Afterwards, he wanted to scold Fushu, but Fushu expressed her feelings, which made Yan Zhangyun unable to help but hug her.

Fushu disguised herself as a man and led the four men around the princess to the brothel, intending to use them to find out the princess's secret. At this time, Xiao Quan's butler came downstairs and was recognized by one of the four men. The butler lied that he had never been to Ninguo. Fushu saw this and secretly told Yan Zhangyun about it afterwards. In fact, Yan Zhangyun already knew that Xiao Quan was related to Ninguo. In order to prevent Fushu from getting involved, he deliberately denied her guess and warned her not to meddle.

Fushu didn't expect her good intentions to get this result, and angrily left. The butler told Xiao Quan about encountering Fushu and the four men in the brothel that day. Xiao Quan instructed the butler to suspend all matters and quickly deliver the secret letter to Jiayang, warning her that no matter what the emperor demands, the princess must agree, and the grand plan must not be ruined, and the signing must be guaranteed to proceed smoothly.

This time, the emperor took the opportunity of the trade agreement to raise the tariff by 50%, but unexpectedly the princess readily agreed, but she also put forward a condition, that is, to let Yan Zhangyun be the prince consort.