When I realized that I am an NPC in the game

Sophie woke up one day to find that her world had changed. As she gazed at the subtitles floating in the air, she realized the full extent of the game's storyline. It turned out that she was an NPC in the game, and not just any NPC, but a malevolent one. After struggling several times to break free from the constraints and rules of the game, she ultimately failed. In the end, she was ruthlessly murdered by the game's protagonist, Pierre, and left forever submerged in formaldehyde.