Wang Shitu had strong doubts about Bian Jie's identity. He firmly believed that the Bian Jie in front of him was not the real Bian Jie.He carefully compared the photos of Bian Jie as a child and now, paying special attention to the shape of his ears, because in his opinion, ears will not change with age.Based on this observation, Wang Shitu concluded that Bian Jie who came back was a fake.He told Qin Yong this discovery, but Qin Yong didn't buy it.He firmly believes that the scars on Bian Jie's arm and other information prove that he is Bian Jie who disappeared that year.Especially that scar, which has a history of at least seven or eight years. If Bian Jie is a fake, it means that he had to carefully lay it out seven or eight years ago. This is not realistic in Qin Yong's opinion.However, Wang Shitu insists that the scar may be just a coincidence.

Bian Jie's class teacher, Teacher Zheng, came to visit her home. When she heard that Bian Jie was back, she wanted to come and see him and borrow his award-winning composition.Jin Manfu and Bian Jie seemed a little nervous. Jin Manfu tried to refuse on the grounds that the composition had been lost, but Bian Meizhen remembered that his son had written an essay about her and treasured it to this day.Seeing that the situation was not good, Bian Jie hurriedly wanted to grab the composition copy and copy it to Teacher Zheng.But Teacher Zheng proposed to go to school to print it out and give it to him tomorrow. Bian Jie had no choice but to fall down on purpose while handing the notebook and spilled tea on the composition book.Jin Manfu took advantage of the situation and proposed to wait for the notebook to dry before sending it to Bian Jie, and Teacher Zheng had to agree.

Wang Shitu's apprentice got Bian Jie's homework. Wang Shitu, who originally wanted to find out the problem through his handwriting, was surprised to find that Bian Jie's handwriting was exactly the same as the previous transcript.However, he still found anomalies - the homework book was missing a page and there were signs of moisture.After understanding the situation, Wang Shitu's suspicion deepened.Because Teacher Zheng did not take away the composition book in front of Bian Jie and his family, but only got it the next day, which gave Bian Jie enough time to falsify it.Moreover, the composition texts at that time were all customized by the school, and the last page would have the printer’s information and date.Although Bian Jie tore off the page, Wang Shitu still found the binding date in the crack - 1996, not 1993.This proves that Bian Jie deliberately manipulated things.From shoes to workbooks, Wang Shitu realized that he had encountered a tough opponent.

One day, Yanzi and Bian Jie were surrounded by Huang Mao and others on the road. During the fight, Bian Jie was knocked unconscious. Fortunately, the police arrived in time and they were able to escape.Bian Jie was diagnosed with a mild concussion, and Jin Manfu was very worried.At this time, Wang Shitu proposed a paternity test again, and Jin Manfu kicked him out angrily.But after this incident, Qin Yong also began to feel that Wang Shitu's suspicion was not groundless.Because Huang Mao called Bian Jie “Xiaoqi” at the time, and Huang Mao had now escaped, Qin Yong decided to go to Hexi in person to investigate Huang Mao and the forces behind him.

When Wang Shitu was dealing with Bian Jie in Zhaoyang, he managed to obtain Bian Meizhen's hair with hair follicles in the bathroom of Bian Jie's house.He also deliberately invited Bian Jie to the police station to identify the attacker and let him drink a glass of water.After Bian Jie returned home, he learned from Jin Manfu that Wang Shitu wanted to conduct a paternity test, but he did not know much about it.After understanding the principles of paternity testing, he recalled that Wang Shitu had borrowed the bathroom at their home before, and that he might have left evidence such as saliva and hair at the police station.Realizing that he might be about to be exposed, he decided to take early action.The next day, he advanced his salary to the factory finance, bought many gifts for his family, left a note and left quietly.Bian Meizhen rushed to Bian Jie's bedroom after hearing the sound of the door closing, and found that the person was gone. There was only a note stating that he had gone to look for his classmates elsewhere.Bian Meizhen chased out the door anxiously, calling Bian Jie's name all the way.