Episode 12 recap: Yao Yu Ling broke up with Wang Xin.

On the train, Ma Kui saw Lao Xia Zi again and learned that Lao Xia Zi often travels on the train in search of his lost daughter. Ma Kui engaged in a conversation with Lao Xia Zi, discussing past events. The group of thieves started their operation on the train, just like before, with one person performing to attract attention while others engaged in theft.

Hou San Jin encountered Ma Kui on the train and instinctively wanted to hide, but he discovered the tricks of the thieves. Sensing something was wrong, Hou San Jin immediately informed Ma Kui, and the thieves also realized that their plan had been exposed. They quickly stopped and prepared to move their stolen items.

While the thief responsible for performing magic tricks was transferring the stolen wallet, he was accidentally caught by Wang Xin. The thief tried to deny and frame Wang Xin, so he started performing. Wang Xin, unperturbed by the thief's attempt to falsely accuse him, was unaware of the thief's cunning plan. The thief directly hit his own nose and then bumped into Wang Xin's arms, creating the illusion that Wang Xin had made him bleed.

The thief shouted for the police, claiming that he was assaulted. He ran to another train car and coincidentally bumped into a university professor who was unaware of the situation but saw the blood on the thief's face. The professor mistakenly believed that Wang Xin had assaulted the thief. Wang Xin couldn't explain the situation clearly, and at this time, Ma Kui managed to catch the other members of the thief gang. However, when the professor returned and exaggerated the incident, it created a very negative impact.

Wang Xin, who was originally the one catching the thief, found himself portrayed by the professor as a police officer who beats people and disobeys discipline. This caused headaches for Hu Dui Zhang. Ma Kui knew that Wang Xin had been falsely accused, but he couldn't do much to help. He could only advise Wang Xin to be mindful of his identity.

After Wang Yong Ge encountered difficulties with Hu Dui Zhang, he went to find Ma Kui, hoping that Ma Kui could help Wang Xin. When Wang Yong Ge mentioned the injustice faced by Wang Xin, Ma Kui brought up past events, highlighting the importance of someone testifying for Wang Xin's future prospects. This made Wang Yong Ge realize that it was the consequence of his failure to testify in the past.

Feeling defeated, Wang Yong Ge returned home and could only remind Ma Kui that Wang Xin's future would depend on how his mentor guides him. After Wang Yong Ge left, Wang Su Fang pleaded with Ma Kui on behalf of Wang Xin, hoping that Ma Kui could assist him.

Ma Kui refused to help Wang Xin, which upset Ma Yan. She argued with Ma Kui and expressed her decision to give up on the college entrance examination, asking Ma Kui not to interfere in her affairs anymore.

Yao's mother talked to Yao Yu Ling about Wang Xin's situation. She was worried that Wang Xin might lose his job because of this incident, so she advised Yao Yu Ling to think carefully and give up on Wang Xin. Yao Yu Ling couldn't bear to separate from Wang Xin, so Yao's mother analyzed the situation and explained that if Wang Xin loses his job, their lives will be affected, and Yao Yu Ling should find another suitable partner.

Yao Yu Ling was torn inside. Early the next morning, she overheard Mrs. Lu in the courtyard discussing how Wang Xin might not be able to keep his job. This made her feel even more distressed. Yao Yu Ling went to find Wang Xin and saw that he had prepared himself to give up his job. She went back and thought it over carefully, finally making her final decision.

Yao Yu Ling asked Wang Xin to meet up and explained that she hadn't made up her mind about marriage yet. Since they wouldn't be getting married, there was no need for them to continue their relationship. This was her formal request for a breakup. Wang Xin understood Yao Yu Ling's intentions, and now he didn't know if he could keep his job. He could only wish Yao Yu Ling well.

When Niu Da Li found out that Yao Yu Ling and Wang Xin had broken up, he happily went to buy drinks from Ma Yan, wanting to celebrate. Ma Yan went to see Wang Xin to comfort him, but to her surprise, Wang Xin had nothing positive to say. This angered her, and she was about to leave.

As Ma Yan was about to leave, Wang Xin gave her a painting to pass on to Ma Kui. Ma Kui saw the painting and understood Wang Xin's message. He quickly followed the clues in the painting and found an eyewitness who could testify to Wang Xin's innocence.

Wang Xin's situation was clarified, but his way of handling things was problematic. The higher-ups made the final decision and sent Wang Xin to the Hongyang Train Station to gain some experience. After Wang Xin went to the Hongyang Train Station, Wang Yong Ge specifically went to Ma Kui's house with half a bag of peanuts to express his gratitude. However, he was once again turned away by Ma Kui.

Ma Kui, accompanied by his new apprentice Xiao Hu, encountered Wang Xin on the train and introduced him to Wang Xin. Wang Xin felt uncomfortable and sarcastically remarked to Ma Kui. After Xiao Hu left, Wang Xin couldn't help but question Ma Kui why he always had a negative attitude towards him.