Zou Da went to Zhihua Temple because the only person in the capital who can help him quickly find out Xiao Jiu's identity is his teacher, an old beggar who teaches him mad dog boxing. Beggars have the most extensive branches in Beijing, and it is relatively easy to investigate individuals. Zou DA can't get through formal channels, so he has to find old beggars. When he arrived at Zhihua temple, he handed the photo to the old beggar. After seeing it for a long time, the old beggar sighed to himself. He said that he knew Xiaojiu for a long time and that Zou Da had lived with her in Zhihua temple. Zou Da asked the old beggar if he knew Xiao Jiu! The old beggar shook his head and said he didn't know him, but he felt as if he had seen him somewhere. Let him recall. Zou Da told the old beggar to ask a little monk or a little beggar to come to him when he thought about it. He must go back now. He can't make Xiaojiu suspicious. Arrived, Zou Da observes small nine's every move carefully, including inside each face stranger, he will earnestly several. While Xiaojiu is greeting the guests, Zou Da sneaks into Xiaojiu's room. He often sleeps here before. When he comes here again, he suddenly feels strange and more uncomfortable. However, he searched the whole room faster and found a dark grid under the bedside table. After sleeping here for so long, he didn't notice it. He didn't expect that there would be a dark grid. Zou Da opened the dark box and there was a file bag inside. Seeing this, Zou Da's face is very ugly. The last scene he wants to see is reality after all. When the file bag was opened, there were several pieces of correspondence paper, on which were written some unimportant words and some strange numbers, which were all like this in succession. Zou Da doesn't understand. It's just a lot of rubbish. Why put it in the file bag like a baby? Finally, on the last one, he saw something. No matter how the numbers changed, there were only ten, but the order was different each time. Is this a kind of code language? Zou Da thought of this possibility. At the bottom of the paper, there is a row of fonts similar to Chinese, but it is definitely not Chinese, but Japanese! With a buzz in Zou Da's mind, everything seems to become clear. Xiaojiu's biggest possibility is that she is from Japan. All the diplomats' adopted daughters mentioned above are deceiving herself - but why choose to be herself? Zou DA can't understand. In order not to make Xiaojiu suspicious, he rushed down the numbers on the paper, and wrote down some simple words, imitating the Japanese, and then carefully put the files into the dark slot.