A Journey To Love

Ren Xin is sent to prison on suspicion of killing the empress. After that, she fakes her death and escapes to Wu. She lives with a blind lady and changes her name to "Ren Ru Yi". Ru Yi intends to rest and recuperate. However, she's selected by the Crimson Guard Branch in Wu to become a White Sparrow, one of the lowest-ranking members.

Everyone from Six Realms Hall begs Ning Yuan Zhou to stay after his return. Ning Yuan Zhou knows he is badly hurt and should retire. When everyone leaves, Yuan Lu blames Ning Yuan Zhou for hiding the fact that he is still alive. Ning Yuan Zhou says nothing and opens the coffin with his palm. Ru Yi who is hiding inside the coffin is knocked to the ground.

It turns out that when the Old Chief is alive, he arranges a marriage between Official Pei and Ning Yuan Zhou. However, due to Ning Yuan Zhou's imprisonment and exile, Official Pei is married to someone else. As Ning Yuan Zhou ponders how to reject her, Ru Yi appears, acting all affectionate. She grabs Ning Yuan Zhou's arm, pretends to be his cousin.

Ru Yi and Ning Yuan Zhou reach an agreement. Ru Yi is responsible for teaching Yang Ying everything she knows about An. Once she's done, Ning Yuan Zhou has to help her locate the culprit behind Empress Zhao Jie's death. When he finds out that Ru Yi is "Ren Xin", he's utterly surprised even though he's the renowned Ning Yuan Zhou.

Ru Yi and Ning Yuan Zhou meet the other team members. Yu Shi San tries to court Ru Yi. Ru Yi shows his skills and makes Shi San and Qian Zhao concede to her. Since the Crimson Guard and Six Realms Hall have a grudge, Ning Yuan Zhou hides Ru Yi's identity by calling her a Secret Agent from Chu.

Ru Yi originally intends to control Ning Yuan Zhou with the Twin Butterflies, but with the help of Yu Shi San, Ning Yuan Zhou forces the Twin Butterflies out of his body in the next moment. Ru Yi is furious, and for a moment, Ning Yuan Zhou is also unsure how to handle the situation. At night, Ning Yuan Zhou suddenly discovers that Ru Yi is missing.

Ning Yuan Zhou finds out that Zhou Ji An, a cavalry general, is stationing his troops to intercept them. To reduce their casualties, the diplomatic team moves together. They gather info and forge letters to dupe their enemies. Ning Yuan Zhou heads to Zhou Ji An's place, duping him by mixing truth with falsehood. Zhou Ji An escorts the "fake diplomatic team" out of the pass personally.

Ru Yi and Yu Shi San go to Qingjing Mountain to find a Silver-ringed Snake to save Yuan Lu. When Ning Yuan Zhou arrives, he sees Ru Yi in danger. He pushes Ru Yi away which causes a relapse of his old injury.

The current Right Guard of the Crimson Guard, Jia Ling, listens to the reports from her subordinates. All the evidence ties the death of Yue San Niang and Yu Lang to White Sparrow, Ru Yi, in Capital of Wu. And the Secret Agent of Chu must have disguised herself as Ru Yi. In the end, Jia Ling sends her trusted aide, Zhu Ji, to track down Ru Yi.

While everyone in the diplomatic team is soundly asleep, Ru Yi secretly meets with someone from the Crimson Guard. Prior to this, she intentionally leaves marks on the bodies of Yu Lang and Yue San Niang, aiming to draw out the mastermind behind the murder case in Capital of Wu. Little does she know that her meeting with the Crimson Guard has already been observed by Qian Zhao.

Unexpectedly, Ru Yi falls into Qian Zhao's trap. Caught between the two, she finds it increasingly difficult to hold her ground due to her existing injuries. When Shi San learns that she is a Crimson Guard, he joins the fight. In the end, Ru Yi has no choice but to "hold hostage" Yang Ying. Covered in blood, she flees, leaving Yang Ying behind only when they reach the outskirts of the mountains.

Ru Yi's return and rescue of Yang Ying made Qian Zhao, Sun Lang, and the rest set aside their resentment for her. She and Ning Yuan Zhou realize their true feelings too. Ning Yuan Zhou tells Ru Yi that he's willing to have a child with her after the mission is over. They sleep while cuddling with each other.

Since Ru Yi returns again, Qian Zhao, Sun Lang, and others have changed their hostile attitude towards her. They even invite her to join them in their planning. Due to the impact of the war between An and Wu, the contact with Six Realms Hall's branch in Capital of An has been blocked. Therefore, Ning Yuan Zhou plans to visit Jinsha House to buy information.

Ru Yi plans to lure the Crimson Guard to He County which is adjacent to Jing City to find out the truth about the annihilation of the branch in Capital of Wu. The general of Jing City is visiting them to deliver a secret letter from the empress of Wu. Ning Yuan Zhou is tasked to welcome him. So, he asks Yu Shi San and Qian Zhao to go to Jinsha House to visit Miss Jin on his behalf.

Ru Yi is shocked when she finds out that her foster mother has been held hostage by the Crimson Guard. Zhu Ji's subordinate Qiong Zhu threatens Ru Yi with her foster mother's life. In order to save Ru Yi, her mother slits her own throat with Qiong Zhu's sword. By the time Ning Yuan Zhou learns about the situation and arrives, Ru Yi, who is injured, is wielding her sword with bloodshot eyes.

Zheng Qing Yun tries to sway Yang Ying with both affection and reasoning, hoping to convince her to agree to elope and marry him. As Yang Ying begins to sense that something is off, especially when Yuan Lu, who has come to stop him, is harmed by Zheng Qing Yun, she finally grasps the situation. Realizing that he can't control Yang Ying, Zheng Qing Yun is ready to kill her.

Yang Ying is still unconscious. To avoid arousing suspicion among the people of An, Ru Yi temporarily disguises herself as Princess Hu Yang from Wu, accompanying Lord Li to An to meet the State Receptionist. However, no one expects the State Receptionist to address Ru Yi as "Master" in front of everyone. Ru Yi is stunned. She never expects that...

Ru Yi agrees to meet Li Tong Guang and mentions that Wu is willing to exchange cities for the safe return of their ruler. Li Tong Guang does not give an explicit answer. Instead, he requests Ru Yi to sit down with her eyes closed and for her to keep quiet. Just like what he did in the past, he sat beside Ru Yi's knees and enjoyed the nostalgic feelings he had in the past.

Ning Yuan Zhou smashes the cup and says that Ru Yi is his most respected lover and companion. He says that no matter if it's the female cavaliers under her or Ru Yi, they don't have the obligation to seduce other men. Mr. Du suddenly realizes the truth. Ru Yi and Yang Ying, who were outside the door, had their hearts stirred too.

Right after the diplomatic team reaches the inn, Jin Mei Niang rushes there to meet them too. Ru Yi doesn't understand why Jin Mei Niang didn't tell her the truth. Jin Mei Niang explains that it's because the feelings that Li Tong Guang has toward Ru Yi are not just an affection between a master and a disciple, but a passion of a man toward a woman.