The One emerged in the 18th century as Victor Frankenstein’s singular triumph—a reanimated corpse infused with a self-aware soul granting intellect, emotion, and speech. Unlike later Necroware constructs limited to programmed obedience, this being possessed true autonomy. Following Frankenstein’s demise, The One vanished, evolving into a near-myth pursued by scholars and nations eager to decode his creator’s lost technique.

Centuries later, he reemerged fixated on realizing Frankenstein’s pledge to forge him a companion. To acquire the scattered pages of Frankenstein’s "Memorandum"—the sole record of soul-binding science—he instigated international strife, hijacked steam-era communication grids, and mobilized legions of Necroware puppets through coded sonic pulses emitted from his cane. Though his control proved vulnerable to cutting-edge signal overrides, his schemes crescendoed when captured agent M dissected his consciousness. Exploiting this imprisonment, The One assimilated Frankenstein’s archived brain patterns and Babbage’s mechanical logic to enhance his reach.

His endgame sought to unify every reanimated mind into a single psychic entity, intending to anchor his bride’s soul within the artificial body of Hadaly Lilith while transferring his own consciousness into Friday, John Watson’s undead ally. The convergence ritual faltered when his global Necroware network was disrupted, scattering his influence. Though his physical form was imprisoned within the Memorandum’s pages, post-credits glimpses revealed residual anomalies: Friday developing sentient flickers and Watson laboring to harmonize artificial reanimation with true soul-binding.