"Ding ding ding…" Hu Dafa’s fingers continued to tap on the blue ceramic teacup in his hand. He said, "If I'm not mistaken, Cao Xingui’s mother might not actually be Máo Xiùfēn at all. We've found a hidden victim, or perhaps, a hidden culprit." Miaomiao still looked half-understanding and said, "What are you talking about? What do you mean culprit? A victim's? What are you mumbling over there? I don't understand what you're saying at all!" Hu Dafa took a breath and said, "Alright, then I'll explain it to you slowly. Haven't you noticed—the photograph of Máo Xiùfēn and the contents of this student record card don't actually match up. What does this mean? It means that the Máo Xiùfēn we're seeing might not be the person recorded in the Heijin Qingshan Middle School student record card. In other words, Cao Xingui's mother, Máo Xiùfēn, stole someone else's identity decades ago. The reason for stealing the identity, if I'm not mistaken, was likely to get into university. Because Cao Xingui mentioned that his mother was one of the few middle school students who could attend university back then. If Máo Xiùfēn, Cao Xingui's mother, attended university, then the person recorded in this Heijin Qingshan Middle School student record card wouldn't have been able to attend university. In that era, whether or not one could attend university could make a huge difference in a person's fate. Although it might seem like the Máo Xiùfēn we see now is living an ordinary life, we don't know what happened to the person whose identity she stole because they couldn't go to university."
Miaomiao seemed to understand a bit after listening and said, "Oh, so you mean someone has come back to get revenge on Máo Xiùfēn? Then why kill Principal Zhao?"
Hu Dafa said, "This is even easier to understand. When we looked at Zhào Jìyuán's file last time, I recall that he worked at the Education Bureau around the time Máo Xiùfēn was in middle school. If, with his position back then, Máo Xiùfēn asked him for help, it wouldn't have been impossible for him to pull some strings at Heijin Qingshan Middle School to tamper with the student record card. If that person has returned to seek revenge on all those involved back then, then I’m afraid the victims wouldn't be limited to just these two people…"
Miaomiao took a deep breath upon hearing this and said, "That's not good, we have to find this person quickly, otherwise more people will die." Miaomiao changed her tone and said leisurely, "That's what we say, but the world is vast, it's really not easy to find this person."
Hu Dafa showed that subtle smile again. He pointed to the screen of Miaomiao's notebook and said, "Don't we have this suspect right in your hands now?" Miaomiao looked at the notebook in her hands doubtfully and said, "This is clearly a computer, what does it have to do with the suspect?" Hu Dafa shook his head and suddenly patted the back of Miaomiao's head. "When you're dealing with computers, you have some brains, but how can you be so foolish at other times? The student record card of Máo Xiùfēn you found, although the photo is fake, the information inside is real! If we follow the clues, can we find the person who was replaced back then?" Miaomiao suddenly realized and said, "Oh, then this matter becomes much easier!" However, while they were both happy, Miaomiao suddenly exclaimed while looking at the computer in her hands: "Hey! How could this happen?" Hu Dafa felt a bad premonition well up in his heart as he looked at Miaomiao's reaction. He quickly asked, "What is it?" Miaomiao typed rapidly on the keyboard and said, "It's bad! Someone else is on the Heijin Qingshan Middle School server. Now, Máo Xiùfēn's student record has been erased!"