Episode 10 recap: Wang Xin mistakenly handed over the child to human traffickers.

Bai Yu Xia sent away her man and had just sat back down when he returned and accompanied Bai Yu Xia to Ha City. The man saw Bai Yu Xia off the train, and Lu Xue Lin came to the train station to pick up Bai Yu Xia. Ma Kui and Wang Xin both saw them.Wang Xin felt that Bai Yu Xia's double-dealing was inappropriate, while Ma Kui understood that a long-distance relationship was not easy for them. Xiao Wen Zhou brought a bag of sunglasses to sell in Ha City, but when he was about to get off the train, he discovered that his bag was missing. He had to ask for help from Wang Xin and the others.

Wang Xin helped Xiao Wen Zhou search for the bag among the crowd getting off the train and finally found it in the possession of a thief. Wang Xin quickly caught the thief, retrieved Xiao Wen Zhou's bag, and Xiao Wen Zhou was extremely grateful. He insisted on giving Wang Xin a pair of sunglasses.

Due to his own identity, Wang Xin refused to accept the sunglasses from Xiao Wen Zhou, but Xiao Wen Zhou continued to pester him. Wang Xin had no choice but to take one pair. Ma Kui was planning to praise Wang Xin for his recent performance, but when he saw that Wang Xin accepted the sunglasses, he scolded him harshly, which made Wang Xin very resentful.

Yao Yu Ling and Niu Da Li both received letters again, this time inviting them to go to the cinema together. Niu Da Li and Yao Yu Ling were very happy and dressed up to go to the movies, only to realize there was a misunderstanding. Yao Yu Ling thought that Wang Xin didn't want to go, so she asked Niu Da Li to accompany her. She went back to the residential compound to confront Wang Xin.

After Wang Xin read the letter, he said that he didn't write it, and Yao Yu Ling didn't write to Niu Da Li either. So Yao Yu Ling believed that Ma Yan wrote the letter to try to match her with Niu Da Li so she could be with Wang Xin.

After reading the letter, Ma Yan directly stated that she didn't write it, and Wang Xin also testified for Ma Yan, explaining that Niu Da Li and Yao Yu Ling received the letter before Ma Yan moved in. Yao Yu Ling didn't believe what Wang Xin said, and at that moment, Ma Kui came out. Yao Yu Ling asked Ma Kui to be the judge.

After reading the letter, Ma Kui immediately recognized Cai Xiao Nian's handwriting, so everyone went to confront Cai Xiao Nian. Cai Xiao Nian said that she was only trying to help, but Niu Da Li and Yao Yu Ling were unhappy and blamed Cai Xiao Nian for meddling.

Yao's mother came to visit Yao Yu Ling, and Yao Yu Ling specially introduced Wang Xin to her mother. They also shared the delicious food that Yao's mother brought with Wang Xin. Wang Xin was very polite and had a handsome appearance, which Yao's mother really liked. After returning home in the evening, she talked to Yao Yu Ling about Wang Xin.

Yao's mother was worried about Yao Yu Ling, who was getting older, and thought she should find a partner to get married. She advised Yao Yu Ling to pay more attention to Wang Xin. Yao Yu Ling was thrilled to hear her mother's words but didn't dare to mention it to her mother since she hadn't pursued a relationship with Wang Xin yet.

When Niu Da Li learned that Yao's mother had arrived, he came to knock on the door to visit. However, Yao's mother didn't think highly of Niu Da Li because he was a furnace worker, so she warned Yao Yu Ling not to get involved with him. Meanwhile, Liu Gui Ying was anxiously searching for her child on the train. As soon as Wang Xin heard that a child was missing, he nervously searched on the train to help Liu Gui Ying find her child.

Wang Xin searched through many train carriages and finally found a suspicious human trafficker. He chased the train and managed to catch the trafficker. He snatched the child from the trafficker's hands and handed the child over to Liu Gui Ying. However, he didn't have time to take a statement from Liu Gui Ying as the train was about to depart, so he could only let Liu Gui Ying leave with the child.

Wang Xin was alone and helped Liu Gui Ying find her child. His colleagues praised Liu Gui Ying, and even Hu Dui Zhang spoke highly of Wang Xin, wanting to commend and reward him, which made Wang Xin very happy.

Just when Wang Xin was feeling proud, he received a notice from another police station regarding a missing child. He realized that Liu Gui Ying was not the mother of the child and might be another human trafficker. The missing child was the one who got lost on Dong Street. Wang Xin realized that he had made a mistake and was scolded by Ma Kui. He felt that he hadn't done his job well and became demotivated.

Ma Yan and Yao Yu Ling came to see Wang Xin, wanting to help him, but Wang Xin didn't want them to disturb him, so he drove them away. Ma Yan went home disappointed, and Ma Kui only found out then that Wang Xin was feeling very negative. He personally went to wake up Wang Xin and even poured a glass of water on his head to make him jump up.

Ma Kui scolded Wang Xin for a while, and only then did Wang Xin regain his spirits. Based on his memory, he drew a picture of the female trafficker, Liu Gui Ying. Yao Yu Ling came to see Wang Xin and was impressed by his drawing skills, so she asked Wang Xin to draw a picture for her as well.