The People Inside the Walls - Extra Chapter 1: That Night Ten Years Ago

Ten years ago, Gao Zhenxiang was just a child. Because he was easily distracted and couldn't control his emotions, he was often scolded by his father. Whenever his father lost control, Gao Zhenwei would always stand by his younger brother's side. "Zhenxiang, you didn't do anything wrong." This was one of the few comforts in his childhood. One day, Gao Zhenwei secretly found Teacher Zhang. "Teacher, my brother is scared at home." He told Teacher Zhang that his father always called Zhenxiang a bad kid and asked her not to let his father know. From that day on, Teacher Zhang began to record Gao Zhenxiang's situation. However, it wasn't long before Gao Zhenwei suddenly stopped coming to school. When Teacher Zhang called to inquire, Mrs. Gao only said, "Zhenwei won't be coming back." A few days later, Gao Zhenxiang returned to school. When Teacher Zhang asked about his brother, he replied in a low voice: "Dad said my brother is dead." But the Gao family didn't report to the police, nor did they leave any missing person records, as if Gao Zhenwei had never existed. Teacher Zhang looked through the materials left by Gao Zhenwei and found a piece of paper: "If I disappear, please protect Zhenxiang." Beside it was a drawing of a black ring, with the letter 'K' written below. Not long after, Teacher Zhang received an anonymous recording. Inside, Gao Zhenwei's voice could be heard: "Zhenxiang, you go out first." Then came the sound of a child crying and a strange man's voice: "Don't be afraid." At the end of the recording, there were three knocks. Knock. Knock. Knock. Teacher Zhang looked at the recorder, feeling fear for the first time. Ten years later, this recording fell into Wang Jing'an's hands again. And the same knocking sound appeared in her consultation room.