The little beggar Hua'er is a bitter girl, but by mistake, she becomes the long-lost daughter of Marshal Qi, a close associate of Yuan Shikai! While the Marshal's real daughter, Xiao Xue, is still struggling to survive in the theater troupe. Fate seems destined to involve these two "sisters" in a complicated love affair with Feng Yi and Liu Yikui. ...... In front of the conspiracy of the secret pact and the righteousness of the nation, their young love becomes incredibly twisted and complicated, and their young friendship is also tested beyond measure. fancy youthful lives, would rather sacrifice themselves to protect the interests of the motherland!
Feng Yi and Liu Yikui are living on the streets, rely on each other as a small beggar, and then they were "patriotic association" of the important leader of Mr. Yu to stay, respectively, training, since then the two brothers are separated.
Twelve years later, the greedy Yuan Shikai became the second provisional president, he authorized the warlord Qi Yuntian, plotting to cede land and sell the country.
The secret contract between Marshal Qi and a British envoy is sabotaged by Liu Yikui, a member of the "Patriotic Society". Feng Yi, a member of the inspection team, accidentally saves Qi's life. Liu Yikui escapes and Hua'er, a female pickpocket, is mistaken for a revolutionary and is arrested by Feng Yi, who once gave her a handout!
Liu Yikui, who witnessed the arrest of Hua'er, mistook Hua'er for a revolutionary comrade, and in the process of rescuing her, he fell into a crisis and hid in the mansion of the Peng San Theater Troupe, and was helped by Xiao Xue, an odd-jobber in the troupe, who dodged a bullet. From then on, Xiao Xue is full of reverence for this hero with a great sense of justice. Feng Yi, in order to build up his success again, uses a flower as bait and sets a trap to lure the Patriotic Association! Unexpectedly, Liu Yikui is able to single-handedly break through the siege and save Hua'er! The troupe also takes the bumpy road of leaving their hometown to seek a way out in Shanghai due to Xue's cover for Liu Yikui.
Qi Yuntian, who wants to reuse Feng Yi, tests Feng Yi by asking him to kill Mr. Yu. While Mr. Yu has gone to his death, Feng Yi is unable to shed tears and avenge his own father's death. As an undercover agent, he takes the blame for his father's murder and rises to become the deputy chief of the Shanghai Anti-Crime Squad, as well as Qi Yuntian's confidant.
In Liu Yikui's eyes, Snow is a righteous friend, but the young Hua'er, who was killed for the organization and even sent to the execution ground, has never taken credit for her actions, and this kind of "heroine" has made him respect and feel sorry for her. But now Hua'er is seriously ill and in a coma, Liu Yikui has no choice but to entrust Hua'er to his only trusted friend Xiao Xue in order to meet Mr. Yu's appointment to pick up Feng Yi from the mountain. Unexpectedly, Hua'er is found by Xiao Xue's brother, Ding Hu, who recognizes Hua'er as the revolutionary who once caused trouble in the teahouse. In order to avoid trouble at his doorstep again, he sells Hua'er to human traffickers when Xiao Xue is not ready.
Liu Yikui, who went up to the mountain, learned that "Mr. Yu died at the hands of Feng Yi! Feng Yi understands Qi Yuntian's intention and starts a false relationship with Qiao Xiaozhi. At the same time, Liu Yikui also accepted the organization's assignment and came to Shanghai to join the old car dealership that covers the organization's operation.
Flower is sold to Mr. William's mansion in Shanghai as a servant girl, and is once again saved by Feng Yi by mistake. The clever Qiao Xiaozhi, who has a vague feeling that there is some ambiguity between Hua'er and Feng Yi, sends Hua'er to the local opera troupe "Flower Moon", and at this time, the Peng San troupe comes to join them, and Hua'er and Xiao Xue are reunited in the troupe! The two of them spend a lot of time together and depend on each other.
Flower always pours out her love for Feng Yi to Xiao Xue, but Xiao Xue is not convinced. Their relationship with Liu Yikui is even more complicated: Xiao Xue is secretly in love with Liu Yikui, but Liu Yikui admires Hua'er wholeheartedly!
When the news that the treaty is about to be re-signed comes out, all the parties take action again. This time, the sabotage of the "Patriotic Association" fails, and Qi Yuntian and William leave the ball scene and secretly sign the treaty of cession! Feng Yi, in pursuit of the shooter, reunites with his lifelong friend Liu Yikui in a dark alley! When Feng Yi confesses that he killed Mr. Yu, Liu Yikui swears to avenge his father's death. The two of them draw swords and Feng Yi deliberately gives in, plunging Feng Yi into a crisis, but at the crucial moment, Hua'er shows up to save him.
The Patriotic Association, in order to get the "secret contract", asked Hua'er to pretend to be Qi Yuntian's long-lost daughter to enter the Marshal's mansion; and Hua'er, in order to get Feng Yi's love, became the pearl of the Marshal's hand. Worried that the Grand President might misunderstand that he is pulling the Japanese strings, Qi Yuntian politely refuses the marriage proposal from the Japanese who has been coveting Hua'er - Eguchi Kazuya - and instead decides to have Feng Yi and Hua'er betrothed, and under the guise of a tour, the two of them are allowed to hand-deliver the secret pact to the Grand President Yuan.
Feng Yi's engagement to Hua Er offends another person - Qiao Xiaozhi, who is already in love with Feng Yi, and makes up her mind to her longtime admirer - "Flower Moon She has already fallen in love with Feng Yi. Qiao Xiaozhi is determined to seek help from her longtime admirer, Kong Yanyan, the leading actress of "Flower Moon", to take revenge on the selfishness of Marshal Qi! At this moment, Hua'er accidentally discovers a shocking fact - "Xiao Xue" is Qi Dashuai's real daughter!
Feng Yi and Hua'er's journey is full of crises ...... mantis catching cicadas but in the back, all the people have only one goal - to seize Feng Yi's hand that hides the great power of the "wooden box! The wooden box is the only one goal - to seize the "wooden box" which hides great power in Feng Yi's hand! The wooden box eventually fell into the hands of Qi Yuntian's rival, Marshal Cao. Marshal Cao returned home with the harvest in high spirits, only to find that he had been tricked. The secret contract in the wooden box had long been wrapped by Feng Yi, and what Marshal Cao had obtained with all his efforts was only a piece of blank paper! The real wooden box was taken away by the funeral procession played by Kong Yan Yan's theater troupe.
The contract is lost, and Feng Yi is wanted by all sides. On his way to track down the whereabouts of the secret treaty, he encounters Liu Yikui, and in order to prevent saving Liu Yikui from going to Cao's camp, Feng Yi injures his leg. The two of them are surrounded by Cao's army and are seriously injured. Liu Yikui escapes and Feng Yi is rescued by his teacher, Asa.
On the other hand, Hua'er, who was stranded and robbed in a foreign land, met Xiaoxue when she was in a state of despair and helplessness, and the two naive and silly girls, after a few discussions, finally made up their minds to go to Zhejiang for the sake of their loved ones to start the action of "rescuing love"!
Liu Yikui was arrested for sneaking into Cao's camp, and after learning about this, Xiao Xue decided to go into the tiger's den to negotiate with Cao, pretending that she had a secret contract in her hands, and used Liu Yikui as a condition for exchange. She then relies on the power of love to save Liu Yikui, but unexpectedly, she falls into the prison of Cao's army.
Meanwhile, Hua'er encounters Kazuya Eguchi, who is not dead to Hua'er and promises to help her find Feng Yi's whereabouts, coaxing Hua'er back to Shanghai. After returning home, Hua'er realizes that the Qi family has been raided - Marshal Cao has struck a blow against his rivals in the name of a fake secret contract. Hua'er shoulders the Qi family's downfall and returns to the Flower Moon Troupe, where she earns a living by singing at the Yuelai Tea House.
Feng Yi, a "traitor", is tortured to death by Asa, and it is only in order to rush to Liu Yikui's rescue that Feng Yi reveals his identity as an undercover agent!
And the Cao army prison, death is just around the corner, Xiaoxue this defiantly to Liu Yikui said the feelings of the heart, Liu Yikui greatly touched, Feng Yi rushed to, and Liu Yikui side by side to escape from the enemy!
Kong Yan Yan believes that the secret contract in his hands will not only free Qiao Xiaozhi from Yuan Shikai's hands, but also facilitate his dream of taking Qiao Xiaozhi far away from home. The wooden box brought back by Kong Yan Yan arouses suspicion amongst the troupe, and everyone assumes that what was snatched back was a treasure map. This in turn triggers more lust and greed!
During the performance at the Yuelai Teahouse, Liu Yikui, Feng Yi, Cao Jun, the inspection team and other forces chased after them, and in the confusion, the "treasure map" eventually fell into the hands of the disillusioned actress Bili Linglong, who was seriously injured before she died, and only then realized that the so-called "treasure map" was only a secret map of the sellout. The so-called "treasure map" is just a secret contract of selling the country! In the midst of the chaos of gunfire, she gave the secret contract to the heroine - flowers!
At this time, Marshal Qi is pinned down by Marshal Cao. In order for Xiao Xue to meet her real father, Hua'er offers that if we all work together to kill Marshal Cao, the secret treaty will be the Patriotic Association's! Liu Yikui also finally learns Feng Yi's identity, and in the final battle, all of them fight side by side, and after paying the price in blood, the secret treaty of selling the country finally comes into the hands of the Patriotic Association.
The ending Feng Yi died.