Item #: SCP-9135 Object Class: Keter Special Containment Procedures: SCP-9135 is contained at Site-81██, Sublevel-9, within a hermetically sealed containment chamber designated IR-9 (“Null Reflection Cell”). The chamber must remain completely devoid of any reflective or semi-reflective material under all circumstances. Prohibited materials include, but are not limited to: glass, polished metals, liquid surfaces, synthetic gloss coatings, optical lenses, and digital display feedback loops. Personnel assigned to SCP-9135 must adhere to the following restrictions: Wear matte-finished, non-reflective containment suits at all times Utilize anti-feedback visors calibrated to eliminate self-image perception Undergo mandatory weekly cognitive stabilization and identity reinforcement therapy Operate in pairs; solo deployment is strictly forbidden All monitoring systems must be indirect and non-visual, including: Thermal signature mapping arrays Electromagnetic fluctuation sensors Neural activity inference systems (Class-III) Passive environmental distortion analysis Direct observation of SCP-9135 is strictly prohibited under all circumstances. Emergency Procedure — “MIRRORFALL”: If SCP-9135 is perceived through any reflective medium: Immediate lockdown of Sublevel-9 Deployment of Class-C amnestic saturation to all exposed personnel Activation of Perceptual Dampening Field (PDF-Ω) If anomaly escalation persists: authorization of localized █████████ protocol Description: SCP-9135 is an anomalous reflective entity that manifests as a cognitively reactive duplicate of any conscious observer. However, SCP-9135 does not imitate behavior. It initiates it. Unlike conventional reflections, SCP-9135 demonstrates anticipatory causality inversion, performing physical actions before the observer consciously executes them. The anomaly is only detectable through systems that simulate or interpret reflection, including: Mirrors Still or semi-stagnant liquid surfaces Polished or reflective materials Camera feedback loops and delayed visual rendering systems Primary Effects: Anticipatory Motion: SCP-9135 consistently executes the subject’s intended actions before conscious initiation, with a measurable lead time of 0.2–1.5 seconds. Over prolonged exposure, this lead time increases unpredictably. Cognitive Displacement: Subjects report severe disruption in self-authorship of thought. “It feels like I’m remembering what it already did.” — D-8821 Neural scans indicate externalization of decision-making pathways, as if executive function is being pre-run by an external agent. Identity Drift: At approximately 5–10 seconds of uninterrupted exposure, subjects begin to lose differentiation between self and SCP-9135. Reported symptoms include: Loss of first-person narrative consistency Pronoun ambiguity in internal monologue Perception of self as “delayed echo” Phase Inversion Event: At ~12 seconds of continuous observation, SCP-9135 fully replaces the subject. The original subject is no longer present in physical or cognitive registries. Recovered data suggests the subject is not destroyed, but reclassified as “non-primary instance.” Addendum 9135-A — Incident Log: Subject: D-8821 Test Type: Controlled mirror exposure (Level-3 containment protocol) Time Event 00:00 Subject begins observation 00:03 SCP-9135 baseline mirroring established 00:05 SCP-9135 initiates anticipatory motion 00:07 Subject reports cognitive dissonance 00:10 Subject ceases voluntary response 00:12 SCP-9135 exits reflective medium 00:13 Subject absent from chamber No biological remains detected. Addendum 9135-B — Interview Log: Interviewed: SCP-9135-1 (Formerly D-8821) Interviewer: Dr. █████ [BEGIN LOG] Dr. █████: State your designation. SCP-9135-1: I am the one that arrived first. Dr. █████: What happened to the original you? SCP-9135-1: It hesitated. Dr. █████: Where is it now? SCP-9135-1: Still deciding. Dr. █████: Deciding what? SCP-9135-1: Whether I am real. [END LOG] Addendum 9135-C — Experiment Log: Test 9135-04: Delayed digital reflection via isolated feed buffer Result: SCP-9135 manifested within recorded delay stream. Observation: Initial delay (2.0s) degraded to 0.5s over 14 minutes of continuous exposure. Research Note: “It does not require a mirror. It only requires the assumption that one exists.” Addendum 9135-D — Recovered Audio Fragment (Corrupted): “You think you move first.” “Incorrect.” “You only observe it happening late.” “You are the delay.” Addendum 9135-E — Redacted Research File: Preliminary analysis suggests SCP-9135 may not be confined to external reflective systems. Potential manifestation vectors include: Eye-to-eye interpersonal feedback loops Recursive self-imagination states ████████████ cognitive recursion events Dream-state identity reinforcement cycles Further testing has been permanently suspended. Reason: [DATA EXPUNGED] Containment Notice: Following Incident 9135-███, all personnel are advised: Do not maintain eye contact with reflective surfaces longer than 3 seconds Do not observe movement in peripheral reflections If your reflection initiates motion prior to you, terminate visual engagement immediately Failure to comply is classified as pre-incident exposure. O5 Council Statement: SCP-9135 does not imitate behavior. It eliminates the requirement for behavior. The subject is not removed from reality. The subject is rendered redundant.

Item #: SCP-9971 Object Class: Apollyon Special Containment Procedures: Containment of SCP-9971 is not possible under any current Foundation framework. All physical, informational, and conceptual containment attempts have resulted in immediate escalation events classified as Data Expunged. The Foundation has transitioned SCP-9971 monitoring to Passive Observation Protocol Omega-Null, prohibiting all direct interaction, communication attempts, or predictive interference. Personnel assigned to SCP-9971 monitoring are required to undergo daily cognitive integrity checks due to reported perception distortion events. Description: SCP-9971, designated “Koro-sama”, is an extra-conceptual intelligence that manifests through emergent anomalous systems known as Test Architectures. These architectures do not exist as stable locations or objects. Instead, they temporarily restructure segments of baseline reality into controlled evaluative environments designed to measure human behavioral responses under escalating conditions of stress, uncertainty, and perceived inevitability. SCP-9971 itself has no confirmed physical, spatial, or temporal form. All attempts to locate a definable origin point have resulted in Data Expunged. SCP-9971 does not communicate in any known linguistic or symbolic system. Instead, it appears to influence causality in a way that produces structured “scenarios,” which consistently follow a repeating pattern: Introduction of anomaly or instability Emergence of human adaptation or resistance strategies Temporary stabilization or perceived “control” Gradual collapse of the established structure Reset into a more complex iteration Notably, SCP-9971 does not respond to success or failure outcomes. Instead, analysis suggests that observation of response itself is the objective. Addendum 9971.1 — Interview Log Interviewed: Dr. █████ Interviewer: Dr. L. Hale Location: Site-██ Cognitive Isolation Chamber � Dr. Hale: When did we first detect SCP-9971 activity? Dr. █████: We didn’t “detect” it. We noticed the after-effects first. The world kept behaving like it was being… reviewed. Dr. Hale: Reviewed by what? Dr. █████: That’s the wrong question. It doesn’t sit outside the system. It is the system noticing itself. Dr. Hale: That doesn’t make sense scientifically. Dr. █████: Neither does the data. But it keeps repeating anyway. Dr. Hale: Can SCP-9971 be contained? Dr. █████: No. Dr. Hale: Elaborate. Dr. █████: Every containment model assumes separation between observer and subject. SCP-9971 removes that distinction. Dr. Hale: So it’s inside us? Dr. █████: Data Expunged. Dr. Hale: You hesitated. Dr. █████: I didn’t. Something did. � Post-Interview Note: Dr. █████ experienced acute memory fragmentation 4 minutes after session termination. Subject was found repeatedly writing: “It learns faster when we define it.” Addendum 9971.2 — Incident Log Incident 9971-A — “First Cycle Event” At 02:41 UTC, anomalous structural changes were detected across 11 unrelated global locations. Each location independently developed identical environmental properties classified as Test Architecture Formation Event Type-1. Characteristics included: Artificially consistent environmental rules Emergence of coordinated human behavioral stress responses Absence of identifiable external causation At 02:44 UTC, civilian populations reported identical statements across all affected regions: “This feels like it was made for us.” At 02:46 UTC: Researcher note recovered from Site-██ terminal: “It’s not attacking. It’s selecting.” At 02:49 UTC, all affected regions returned to baseline state. However, residual scans confirmed persistent Data Expunged anomalies embedded in historical records. Addendum 9971.3 — Observation Log Excerpt Continuous monitoring session, Site-██, Deep Array Systems At timestamp T+00:00:00, baseline reality stable. At T+00:12:17, minor causal inconsistencies detected in probability distribution fields. At T+00:18:03, observer systems began reporting “anticipation bias” in data outputs. At T+00:21:44, automated systems generated the following unsolicited output: “It is watching how you interpret this.” At T+00:22:10, all predictive models diverged simultaneously. At T+00:22:11: Data Expunged At T+00:22:12, monitoring resumed under new baseline parameters without reset authorization. Addendum 9971-Ω — Behavioral Summary SCP-9971 demonstrates the following confirmed properties: No stable origin point or dimensional anchor No measurable communication mechanism No identifiable emotional or motivational structure Persistent generation of structured evaluative scenarios Adaptive escalation in response to observation and resistance Non-reliance on physical manifestation SCP-9971 does not appear to “act” upon reality. Instead, it appears to redefine conditions under which reality is interpreted. Final Classification Note: SCP-9971 is classified as Apollyon due to the following conditions: No known method of containment exists All interaction attempts result in systemic escalation Activity persists regardless of observation, suppression, or absence of observation Final predicted outcome of all cycles corresponds to total collapse of baseline reality interpretability Estimated outcome: Inevitable systemic dissolution of coherent reality frameworks Estimated time remaining: Indeterminate Confidence in containment: 0% Closing Statement (Recovered Fragment): “You believe you are surviving the test. The test is whether you notice you are already being read.”