Apocalyptic America, but I'm a Demonic Cultivator

First of all, I'm human. I won't do anything that violates the basic principles of human morality. Secondly, don't ask where my moral limits are. If necessary, I can lower them a little further. May the world be blessed! Unfortunately, that “blessing” came in the form of a disaster. A sudden wave of gray mist completely engulfed the world. Spiritual qi revival had begun, just in a different form. After dying and coming back to life, Chen Yu became a half-human, half-demon-spider hybrid. He had rapid self-healing, could absorb spiritual qi without impediment, had a keen sense of danger, was a seed of evil with no moral limits, possessed human intelligence, and had the System's enhancements! He also received an involuntary “gift” from the Demon Sect, as well as a shelter “donated in friendship” by Blue Star's natives. Together, these made him a terrifying monster! “From now on, I call the shots on Blue Star. Who's with me? Who's against me?” At his words, the whole hall fell silent. Not a single being dared to object!