Demon Suppression Bureau

Biodata

Feature	Value
Name	Demon Suppression Bureau
Alias(es)	镇魔司
Affiliation	Great Yin Dynasty
Occupation/Role	Imperial supernatural law-enforcement institution specializing in demons, evil spirits, and strange occurrences
Status	Active
First Appearance	Chapter 2

Mandate and Authority

The Demon Suppression Bureau is Great Yin Dynasty’s legitimate institution for suppressing demons, evil spirits, evil cultivators, and supernatural incidents. Its name is widely known among common people, and its agents operate with imperial authority. 4 29

• Bureau agents investigate demon-related deaths and supernatural disturbances, secure affected sites, collect remains, and submit mission reports for merit settlement. 2 5 13
• Its core duty is protecting ordinary people from demon-evil threats; supernatural practitioners causing chaos, harming civilians, or using forbidden yin-evil objects fall within its jurisdiction. 4 22 25
• Agents may act decisively against those who obstruct official demon-slaying investigations. In serious cases, the Bureau can execute first and report afterward under imperial authority. 29 31
• Internal procedure still matters: killings and raids must be framed and documented under the Great Yin Law on Demon-Evil Disposal, with evidence, reports, and official cause. 34 60
• Large-scale supernatural techniques near populated areas are restricted; violations ordinarily result in a three-day suspension and a written explanation to headquarters. 24

Organization

Rank Structure

Bureau standing	Details
Probationary demon slayer	Entry rank for formal recruits. Probation lasts at least three months, even if the recruit’s combat strength already meets official standards. 4 8
Official demon slayer	Standard requirement is the Intent Comprehension Realm, where astral qi can be projected outward to attack at range. 6
Hundred-Household commander	Corresponds to Grandmaster-level combatants capable of condensing innate divine abilities. 4 6
Thousand-Household commander	Associated with Great Grandmasters, who have begun forming martial dharma forms. 4 6

The Bureau also maintains regional offices, including a provincial Western Office, Hundred-Household Offices, patrol stations, and patrol inspectorates. 16 40 60

Factions

• Extermination Faction — Advocates killing demons on sight and eradicating evil completely. Xu Jin is associated with this faction through Chu Feng’s recommendation. 6
• Containment Faction — Advocates researching demon flesh and blood and strengthening themselves through fusion. Its members receive more extensive supply quotas and fixed monthly magical-implement allotments. 6 16 22
• The two factions openly feud over their opposing approaches to demons and evil cultivators. 6 15

Operations and Resources

Recruitment and Training

The Bureau offers supernatural practitioners two paths: formal enlistment or independent registration. Formal recruits receive a salary, food and lodging, standard weapons, monthly cultivation resources, merit rewards, and access to Bureau intelligence. Independent registrants retain their freedom but must report supernatural activity and may be hunted if they use their powers to deceive or disrupt society. 4

• New recruits are assigned to veteran-led teams and are not expected to face high-level demons alone; Hundred-Household-ranked officials or stronger are intended to handle major threats. 5
• The Bureau keeps cultivation methods, medicinal baths, dietary supplements, pills, and technique manuals available to members, making advancement substantially more accessible than for independent cultivators. 5 8
• Recommenders receive contribution-point rewards based on the later assessment ratings of recruits they introduce. 5

Identification Plaques

Bronze plaques serve as an agent’s identity and operational credential.

• They identify their bearer as Bureau personnel and can be displayed during investigations. 11 47
• They grant access to the Technique Pavilion, supply collection, and mission acceptance. 5
• Demon Exorcists carrying bronze plaques receive courier-road priority, checkpoint passage without inspection, and the right to requisition relay horses for urgent official duties. 22
• Exceptional recruits may receive specially marked bronze plaques and expanded access privileges. 8

Missions and Merit

Mission grade	Typical scope
Ding	Street patrols and investigations 9
Bing	Lesser-demon cases; probationary demon slayers may accept these or lower only, and must work in teams 9
Yi	Spirit-monster cases 9
Jia	Great-demon appearances 9

• Mission rewards are issued as contribution points, which may be exchanged for weapons, cultivation manuals, pills, forging materials, and other resources. 4 16 22
• Demon crystals, corpses, and other spoils are processed through official channels and exchanged at high value. 4 5
• Mission halls remain staffed around the clock, while field teams operate in rotating shifts and night-patrol units cover nighttime supernatural activity. 5 15

Cleanup and Evidence Handling

• The Bureau seals scenes of demon activity and suppresses sensitive information when necessary. 2
• Dedicated cleanup teams collect remains, process evidence, count casualties, seal materials, and mark dangerous formation nodes. 5 62
• Field agents and administrators prepare reports, mission ledgers, formal testimony, warrants, and evidence packages for higher offices. 13 34 60

Appearance and Insignia

Bureau field personnel wear fitted black combat uniforms embroidered with crimson patterns and carry bronze plaques bearing the words “Demon Suppression Bureau.” 2 4

• Vermilion gates and red lanterns mark at least one Bureau compound. 15
• Demon slayers returning from field assignments may carry traces of Sha Qi on their uniforms. 15
• Patrol inspectors carry seals identifying both the Bureau and their assigned district. 47

Policies

• The Bureau’s greatest territorial taboo is allowing supernatural conflict to endanger ordinary people. This constraint can force agents to restrain their attacks in populated areas. 22
• Wandering cultivators are generally permitted to seek treasure and conduct business within Bureau territory, provided they do not harm civilians or handle forbidden yin-evil objects. 25
• The Bureau does not monopolize all supernatural resources, partly because remote mountains, forests, and waterways are too extensive for its personnel to investigate alone. 25
• Evil cultivators who abduct civilians, refine souls or puppets, ambush Bureau personnel, or collude with hostile yin entities are treated as enemies of the law rather than ordinary criminals. 20 60

Relationships

• Great Yin Dynasty — The Bureau acts as the dynasty’s official supernatural enforcement arm and exercises imperial authority. 4 29
• Profound Yin Hall — A major hostile evil-cultivator organization repeatedly targeted by Bureau investigations, extermination campaigns, and branch purges. 16 41 61
• Extermination Faction — Internal faction favoring direct demon extermination. 6
• Containment Faction — Internal rival faction focused on demon research and fusion; it receives preferential access to certain supplies and magical implements. 6 16 22
• Wandering cultivators — Tolerated within Bureau territory when they pursue treasure without harming people or engaging with forbidden objects. 25

Story Role / Major Arcs

• Bureau agents Chu Feng and Zhang Shun investigate the Stone Spirit incident at Blackstone Slope, seal the quarry scene, and begin looking into Xu Jin after his unexpected victory. 2
• After witnessing Xu Jin kill the Yellow-Skin Demon, Chu Feng offers him formal enlistment or independent registration; Xu Jin joins as a probationary demon slayer. 3 4 5
• The Bureau conducts recruitment assessments, issues cultivation resources and plaques, and assigns Xu Jin to supervised demon-slaying work. 7 8 9
• Its Western Office pursues Yin cultivator strongholds in the western outskirts, where agents investigate soul-nourishing formations and the remnants of an ancient battlefield. 16 17
• During the Green-Mud Ferry crisis, the Western Office seals crossings, suppresses rumors, prepares battle forces, and organizes a response to the expanding Yin Domain. 40 41
• The Bureau recognizes Xu Jin’s destruction of the Profound Yin Hall’s Green-Mud Ferry branch as a major merit case and forwards the report to higher-level Merit Offices. 44
• Following attacks on Bureau constables and evidence of Profound Yin Hall activity along the river, Hundred-Household Li authorizes Xu Jin to act as circumstances require, leading to the provincial-branch investigation and purge. 46 60 61 62