The narrator tells us that the photo was taken of him, and that he looks very different from the person in the photo. He says that he's changed so much that he actually looks like someone he used to know. He also says that the two of them are very different people, with one having a mole in one spot and the other having a different mole in the other spot. The narrator says that this is the second time he has heard the name "big brother" before, and he says that it's quite interesting that they drink the same bubble tea. They're very different, the narrator says, because they're both very shy and timid. The kid from the next door is called "dou dou" , and the narrator doesn't know what to say when he sees him. He's afraid of insects, he says, so he won't go on and on about how big he is. He tells the narrator to go on, and then he tells him to call him "Big Brother." The narrator is shocked, because he thought that they were the same person, but now he realizes that they are not. He asks the narrator not to worry about his flash drive, which he almost forgot. He promises to have backup copies of it from now on.