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Overview
The Bureau of Anomaly Control (commonly abbreviated as BAC) is the primary government organization in Hethereau responsible for dealing with supernatural phenomena. The Bureau manages both Anomalies (supernatural disturbances that defy common sense) and Espers (humans who possess supernatural abilities). As the central authority on all matters related to the supernatural, the BAC plays a critical role in maintaining public safety and order within the city.
Organizational Structure
The Bureau of Anomaly Control contains multiple divisions and units, each with specialized responsibilities. The two primary branches are the Esper Tactical Divisions (ETD) and the Containment Units (CSU).

Esper Tactical Divisions (ETD)
The ETD are elite tactical divisions within the Bureau, staffed by powerful Espers trained for direct combat operations against dangerous Anomalies. Each ETD unit operates semi-independently with its own command structure.
Unit | Known Members | Details |
|---|---|---|
ETD-4 | The most detailed ETD unit in known lore. Led by Captain Baicang with Skia as Lieutenant. | |
ETD-6 | Elyms (Lieutenant) | Known through Elyms, who holds the rank of Lieutenant. Other members have not been revealed. |
Other ETD Units | Not yet revealed | Additional ETD units exist within the Bureau's structure but have not been detailed. |
Containment Units (CSU)
The Containment Units focus on containing and neutralizing Anomalies rather than direct combat. These units handle the stabilization and quarantine of anomalous phenomena.
Unit | Known Members | Details |
|---|---|---|
CSU-2 | Mint is described as a rising star within this unit, known for exceptional performance in containment operations. | |
Other CSU Units | Not yet revealed | Additional Containment Units have been mentioned but not detailed. |
Relationship with Eibon
The Bureau recruits the player character (Zero) and assigns them to the Eibon Antique Shop, a privately operated anomaly hunter crew in the Bridge District. While Eibon works alongside the Bureau and takes on anomaly commissions, the two organizations operate separately. The Bureau maintains its official government structure and chain of command, while Eibon functions more as an independent contractor. This arrangement allows the player to interact with Bureau members and operations while maintaining a degree of autonomy through Eibon.
Role in the Story
The Bureau of Anomaly Control is a major narrative presence throughout Neverness to Everness. Bureau personnel appear regularly in main quests, and the organization's policies regarding Anomaly management and Esper control form the backdrop for many of the game's conflicts. The tension between the Bureau's institutional approach to supernatural phenomena and the more grassroots methods of groups like Eibon creates an ongoing narrative dynamic.