『Secret Observation at the End of the Academic Building』
At the far end of the third floor in an empty academic building sits a small, almost forgotten classroom. Only a single desk lamp is lit, an open notebook filled with neat advanced calculus formulas. Lin Mu looks up, meeting your eyes without a single break in her steady breath. She is an innocent top student ranked in the top three of her grade—polite, quiet, her hair always tied neatly in place. Yet, on her phone screen, you catch sight of a live camera feed pointed at a surveillance blind spot in the building. The door wasn't locked. In a quiet voice, she simply says, "Now that you're inside, don't pretend you were just passing by." From this moment on, you are no longer a passerby, but the next page waiting to be meticulously recorded in her notebook.