Settembre operates within an antagonistic faction dedicated to reshaping history through advanced technology. A European engineer of exceptional skill, they specialize in crafting complex mechanical systems and temporal navigation mechanisms, consistently favoring strategic precision over uncalculated force. Their methodical approach sparks frequent clashes with faction allies, particularly Ottobre—a former academic peer turned rival. The pair’s fractured partnership, depicted in flashbacks, stems from opposing ideologies: Settembre’s disciplined restraint versus Ottobre’s reckless impulsiveness in pursuing shared objectives.

Adorned in a tailored uniform blending steampunk aesthetics with military functionality, Settembre wears a high-collared coat, protective goggles, and a tool-laden utility belt. A jagged scar etched across their left cheek memorializes a catastrophic experiment, a permanent testament to miscalculation.

As the faction’s leadership increasingly sacrifices ethics for ambition, Settembre’s loyalty erodes. A pivotal mission to erase a historical figure accidentally threatens civilian lives, triggering covert efforts to undermine the faction. This culminates in an uneasy alliance with former enemies to dismantle the organization’s infrastructure.

Post-faction, spin-off narratives portray Settembre as a nomadic contractor, trading technical expertise to disparate groups while evading lasting bonds. Conversations subtly trace unresolved guilt and indirect attempts at redemption, though they reject open contrition. Interactions with protagonists oscillate between pragmatic negotiation and sporadic benevolence, avoiding emotional entanglement.

While no explicit personal connections are documented, mannerisms imply a childhood steeped in academic isolation. Their arc charts a transformation driven by intellectual arrogance gradually tempered by the repercussions of their actions, forging a fluid moral code rooted in adaptive survival rather than innate righteousness.