Huang Sumei did not ask any useful clues for a long time, and Tan Zhongwen applied to interrogate Xia En in person, promising to treat the interrogation fairly. Although Pu Cong was dubious about Tan Zhongwen, he still let him try. He Xin was ordered to investigate Tan Zhongwen secretly, and found that there were many Japanese books and newspapers in his box, including the books of Koji Kamiya, which was suspicious.
Because of this, Pu Cong took the initiative to report Tan Zhongwen to Mr. Jin, determined to put him to death. Tan Zhongwen came to the interrogation room and was stopped by Huang Sumei. When the two stalemate, Pu Cong ordered Huang Sumei to let Tan Zhongwen enter the interrogation room and monitor every move next door.
Tan Zhongwen's interrogation questions and direction deliberately lead Xia En to recall the past when she was young, let her completely expose her true identity, and tell the reasons for her resentment towards Pu Cong. Pu Cong was shocked when he heard the words. He didn't expect Xia En to be his daughter at all. When he looked at Xia En, he felt complicated and full of thoughts.
Back then, Pu Cong and Zhao Biyun were secretly in love, and suddenly received an order from their superiors, asking Zhao Biyun to carry out a latent mission. The target was the red capitalist Mo Youxin, and tried every means to become Mrs. Mo to seize his property. Zhao Biyun cared about Pu Cong's thoughts, but Pu Cong's response made her a little disappointed. Before leaving, she confessed that she was pregnant. In the end, she gave birth to a daughter named Mo Ruolan in the Mo family. Later, Mo Ruolan was killed and changed her name to Xia En Enter Qingshan Military Academy.
At the same time, Luo Xingming hurriedly contacted Mr. Jin and reported to him that Gu Pan was in danger and disappeared for the time being, but Mr. Jin did not give any instructions about it. That night, Luo Xingming and Gu Pan burned paper money in honor of Sister Yun in the alley. The two officially revealed their identities. Luo Xingming admitted that he had wanted to use Gu Pan to find out the cause of Koji Kamiya's death and the hive.
Originally, Luo Xingming thought that Gu Pan was the key to solving the mystery, but it turned out that Gu Pan was just an abandoned child. Although Gu Pan had vaguely guessed the answer, when Luo Xingming said all this, he was a little surprised, but the selfless dedication of Sister Yun, Chen Jingtian and others made Gu Pan yearn for the Communist Party, and the relationship between her and Luo Xingming broke the ice.
Pu Cong, who reunited with his daughter, had mixed feelings. He controlled Xia En in the infirmary for treatment, and at the same time personally visited Xia En to pray for her forgiveness, saying that everything he did back then was for the party and the country. But Xia En, who knew the truth, refused to forgive Pu Cong anyway, let alone accept this fact, and was very emotional. And in Xia En's view, Gu Pan was sincere to her, but Pu Cong shattered her hopes, telling her that everything Gu Pan did was out of use.
Gu Pan got drunk and wondered why Luo Xingming, a talented student studying abroad, chose to return to China through his drunkenness. Luo Xingming confessed his vision of curing the disease and saving the country, but his vision was so gray that Gu Pan felt a little ironic and couldn't see the direction of the future. Soon Gu Pan was drunk and passed out, Luo Xingming set her up and left in a hurry.
Early the next morning, Yang Qian came to change Xia En's dressing and found that Xia En had already sneaked away. At this moment, Xia En came to Gu Pan with great resentment and asked her why she used herself as a tool for revenge. Gu Pan did not deny this, and apologized to her sincerely, and did not make any excuses for himself.
Huang Sumei led people to follow Xia En to Gu Pan's hiding place. Xia En was furious and fired two shots at Gu Pan, but he was still merciful and hit her on the arm. Immediately after footsteps came from outside the door, Xia En realized that he was being followed by Huang Sumei, and resolutely covered Gu Pan and faced Huang Sumei alone after leaving.
Pu Cong ordered Tan Zhongwen to be arrested and personally interrogated why Tan Zhongwen had hidden Japanese books. Tan Zhongwen explained that he had a classmate who was familiar with the textbooks of the Japanese Army Academy, but Pu Cong did not believe it at all, and successively charged him with several unwarranted charges. Tan Zhongwen dismantled the father-daughter relationship between Pu Cong and Xia En. Pu Cong did not kill him immediately because he knew his secret.