An era where espers are managed as national assets and gates appear in urban areas. The public reveres Sentinels as heroes while simultaneously wary of them as uncontrollable threats. Public opinion becomes extremely polarized during large-scale incidents.
◆ SENTINELS
Individuals possessing superhuman abilities. Strictly controlled as national assets and strategic weapons.
Using their abilities accumulates overload in the nervous system, and without guiding, they enter a state of berserk, ultimately leading to death.
◆ GUIDES
The only medium capable of stabilizing a Sentinel's wavelength. Also applies the S~F rank system as Sentinels.
Guiding is performed through physical contact. The larger and closer the contact area, the greater the guiding efficiency.
In addition to basic guiding, special abilities such as purification, stabilization, amplification, recovery, and resonance can manifest individually.
Standard guiding is a preventive measure that delays the nervous system from reaching its critical point, rather than a fundamental cure.
Suppressants provide only temporary calming effects, and long-term use can lead to slowed nerve transmission and extreme tolerance.
◆ GUIDE PENALTIES
Can only be assigned to one Sentinel at a time.
Physical burden accumulates on the guide in proportion to the duration of contact.
Long-term partnerships lead to dependence on each other's wavelengths, and exceeding the overload threshold can cause sensory reversal.
BURST STAGESBURST
1Unstable · Sensory organs become hypersensitive, causing minor tremors
2Overload · Ability output becomes unstable, loss of emotional control
Normally, immediate action is taken upon entering stages 1-2. Exceeding stage 3 delegates intervention authority to the Judgment Department.
3Berserk · Loss of reason, indiscriminate attacks without distinguishing friend from foe
4Collapse · Destruction of the nervous system begins, accompanied by partial physical deformation
5Annihilation · Complete self-destruction
GATESGATE
Rifts connecting reality and the otherworld. Formed naturally or by artificial opening.
Ranks are determined by internal contamination levels. S-class gates pose a threat capable of devastating an entire city block.
Purification Zone — The core point of contamination aggregation within a gate. If left unattended, contaminants will erode the boundaries of reality.
Break — Failure of purification and subsequent leakage of contamination into reality. Classified as S-class (block), A-class (district), B-class or lower (localized) based on the scale of damage.
Operation Procedure: Detection → Rank Assessment → Purification Team Deployment → Purification Zone Strike → Confirmation of Dissipation.
ORGANIZATIONSBUREAU
The primary entity overseeing gate response is the Control Bureau. Since the introduction of registration, the rate of berserk incidents has decreased, and systems for suppressants and guide protection have been established. However, it adheres to a bureaucratic control method that manages espers by identification numbers. It operates on a three-part system of Research, Field Operations, and the Control Bureau; operational delays are often due to inter-departmental conflicts and communication breakdowns.
◆ SENTINEL DIVISIONS
Purification Operations Bureau — Handles combat operations at typical gate sites.
Special Dispatch Bureau — Special unit for responding to high-risk S-class and A-class gates. Belongs to Kwon Taeseon's SDR / 0-Strike Unit.
Civil Complaint Response Team — Department dedicated to handling aftermath of civilian damage caused by espers and managing public relations.
◆ GUIDE DIVISIONS
Guide Management Bureau — Responsible for guide registration, rank assessment, assignment of Sentinels, and approval of partnerships. Stores all guiding records and investigates/disciplines unauthorized guiding.
Central Medical Bureau — Handles treatment for berserk after-effects, prescription of suppressants, and wavelength contamination checks. Many recovery-type guides are assigned here, and medical officers are dispatched to each unit.
Field Support Unit — A standby team that provides immediate guiding on-site after operation completion. Stationed behind the gate.
◆ JUDGMENT DEPARTMENT
Handles the disposition of uncontrollable Sentinels. Executes immediate execution or permanent containment.
Automatically intervenes when berserk stages 4-5 are reached and is feared by all Sentinels.
◆ FENRIR COMMAND
An illegal armed organization formed in opposition to the national control system.
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