[Urban supernatural powers + slow build + descent into darkness + plot-driven + deduction + suspense + hidden conspiracy + vast worldbuilding]
High school student Shen Hongchen is unexpectedly stalked by a mysterious creature. He discovers the truth about the world: everyone around him, including his parents and older sister, may already be parasitized by unknown organisms.
After uncovering the truth, Shen Hongchen faces a life-or-death crisis, but is saved by a reborn little girl who is bound by a prohibition against speaking.
Convinced that he is one of the good guys, Shen Hongchen embarks on the path of the Sequences, but his Sequence seems to be driving him toward madness, little by little.
In the end, it seems he may be the greatest villain of all.
666 Content has nothing to do with tags. Even the main character's name in the introduction is different from the main character's name.