I Tampered with the Underlying Code of the Space in the Back Room

Lin Yanbin is an ordinary programmer. The only thing that is extraordinary is that his sister Lin Dienuo disappeared three months ago, leaving only an old mobile phone with a broken screen. That night when he turned on the phone, an unfamiliar coordinate lit up on the screen. The next second, the bedroom wall flickered like a mis-rendered screen. He reached out to touch it and fell into it. There is a wet yellow carpet under your feet, and there are buzzing fluorescent lights above your head. The corridor stretches infinitely, and every corner is exactly the same - this is Level 0, the back room. In a room that shouldn't be there, he finds an old industrial terminal. The moment the screen turned on, he found that he could "see" the underlying data of the space: the wallpaper was a cycle command, the corridor was a topological error, and the exit was written as "unreachable." Others rely on trial and error, but he survives by reading code. The terminal is not just a scanner, it allows him to modify the rules - even if it is just a small area, for more than ten seconds. Every time it is modified, the back room will be repaired automatically, and his spirit will bear a shock. The terminal also gave him a coordinate: his sister is waiting for him at Level 11. On the back of the photo is a line of text: "Don't let the terminal record everything about you." Lin Yanbin wanted to know why his sister disappeared, why the terminal bound him, and what exactly was in the back room. He followed the codes and clues down layer by layer, until the moment when the terminal's highest authority was triggered - the screen showed that he was the creator of this "program". He doesn't remember. But the back room remembers. He wants to find his sister and himself before the rules collapse.