Forensic pathologist Chen Gan, following in his father's footsteps, has become the chief medical examiner of the Fuming City Public Security Bureau. During the investigation of a chilling double homicide in a shantytown theater, he uncovers a shocking detail: the body of a pregnant teenage girl shows signs of postmortem childbirth, an extremely rare phenomenon. At the scene, an old Nokia 3310 phone—seemingly out of place—emerges as a vital clue. As the case unfolds, it reveals connections to a 2.5-billion-yuan theft involving a set of rare blue amber prayer beads and a sinister PUA crime ring that manipulates and exploits women. Chen, along with his sharp-minded assistant Su Yaxin, tech officer Du Yuting, and trace evidence expert Gao Mingqiang, forms the elite "Major Crimes Unit" tasked with solving the city’s most baffling murders. But a darker mystery resurfaces from Chen’s past—his older brother, Chen Jingyu, was brutally killed years ago inside a haunted house, and the case was never solved. Now, a new victim has been found with a grotesque “crimson butcher’s blade” carved into their chest. Then comes a chilling message from a mysterious sender: “Brother.” As the investigation spirals deeper, Chen Gan finds himself entangled in a decades-long conspiracy of revenge, where every clue draws him closer to the truth—and closer to danger.

In the parallel universe of 20th-century America, magic and steam technology coexist. The five hidden realms, collectively known as the "Aetherium Federation," lurk in the shadows of human society. The foundation of the Federation is upheld by an ancient prophecy—seven shards of "Prism Fragments," containing the primal power of creation, are scattered across the continent. If gathered by the "Obsidian Court," they will tear apart the veil between reality and illusion, unleashing the soul-devouring entropy demons. Eighteen-year-old orphan Adrian Blackthorn struggles to survive in the slums of New York, accidentally awakening the ability to manipulate "Echoes of the Aether"—an Eastern esoteric art derived from the memories of life. He becomes embroiled in the war between the Federation and the Court. As he delves deeper, he discovers that his bloodline is intricately tied to the "Shattered Prism" foretold in the prophecy: each of his choices twists the fabric of fate, and his very soul is the vessel for the seventh fragment. To prevent the rise of the entropy demons, Adrian must join forces with a diverse group of allies: the cynical elven revolutionary Celenia, the "Mechanical Zen" dwarf master artisan Cooper Anvil, and the half-dragon scholar Electra Vors, cursed by the Court. However, as the truth unfolds, Adrian realizes that the "battle of good versus evil" between the Federation and the Court is actually a millennia-old deception—the true enemy is the slumbering Creator spirit, "The One," within the Prism Fragments, which longs to destroy and reset the cycle of existence...