(Not a harem, not invincible, not systematic, not Shuangwen's post-apocalyptic worldview is divorced from reality, please read as appropriate)
Parameter engineer Lin Shen discovered strange memory afterimages during routine maintenance. These data fragments pointed to the "initial settings" deliberately hidden by the system. In order to investigate the truth, Lin Shen ventured into the data fold, and when his consciousness was about to collapse, he met a mysterious existence who claimed to be the "zero-generation parameter master". When Lin Shen tried to modify the core code, Lin Shen discovered that the so-called "default" was actually a memory cage actively chosen by humans. This is the story of a parametric engineer who accidentally comes into contact with the truth of the world while repairing system vulnerabilities. Let's start with that unusual maintenance task.