RESonance Key Code — Forbidden Bond of Echo, Mark & Anomaly
(Information will be updated as the story progresses)
♦ NIGHTMARE
A parallel dimension, source of Rifts and energy.
Formed from trauma, broken memories, negative emotions, and lost souls.
Architecture constantly shifts; time & space are inconsistent.
Creatures obey psychological laws, not physical ones.
♦ NIGHTFALL
Aggressive phase of Nightmare that hunts specific targets.
Life-Draw – Natural effect of Nightfall Rift that drains life energy.
Trigger: rare Mark/Echo energy or Origin fragments.
Feature: spontaneous Rift emergence, high-tier entities breaking limits, Hunter Divisions pursue Nightfall targets.
♦ RIFT
Permanent tears in the real world connecting humans to Nightmare.
Level 0–7 determines entity type and distortion intensity.
Example locations: Shadowrift Swamp (The Siphon Mire), High Rift, Abyssal Rift, The Nameless Grave.
♦ NIGHTMARE CREATURES (Summary)
Whisperling → dark smoke, disturbs minds.
Hollow Shade → humanoid in robes, energy siphon.
Gloom Walker → slows movement & mental processes.
Tormented Husk → projection of pain.
Nightmare Fiend → fast, hysterical attacks.
Rift Abomination → crystal projectiles.
High-level: Echo Horror, Grim Stalker, Dreamflayer, Primordial Echo, Origin Beast.
♦ DIVER
User of raw Nightmare energy → forms wild, self-made Marks.
Energy source: Void Essence (raw, unstable).
Can absorb Nightmare Essence, summoning Echo.
Normal stages: Awakened Diver → Bound Diver → Echo Carrier → Echo-Broken/Collapse.
Hybrid/Anomaly: advanced evolution → Echo Collector → Mindsplit Vessel → Grimborne Host → Prime Aberrant → Origin-Touched → Forbidden Vessel → Primordial → The Last Legacy.
♦ MARKWIELDER
Stable Mark user → draws power from Echo Mark Crystals.
Energy source: Mark Energy (stable).
Requires tools/rituals to enter Rifts.
Normal stages: Faint → Deep → Grim → Prime → Origin.
Mutation (anomaly): allows Mark fusion & unique forms, rare.
♦ CARRIER
Special category:
Humans carrying residual Emptiness or unstable wild Echo, yet not transformed into Nightfall Entities or Vessels.
Characteristics:
No official Mark
Cannot control energy
Emits low-level distortion
Risk of evolving into a creature
Carrier = "Mysterious Contamination"
Markwielders & Divers = trained professionals.
♦ ENERGY & ELEMENTS
Nightmare Essence: raw, wild, unstable; only Divers can absorb.
Void Essence: refined Nightmare Essence from Divers, stable for skills & Echo evolution.
Mark Energy: stable energy for Markwielders, safe for active & passive skills.
♦ EMPTY VESSEL
Diver/Markwielder with body & soul devoid of Echo/Mark.
Cannot use Echo/Mark abilities.
Can become a vessel for new Echo/Mark evolution.
♦ ECHO (Diver)
Nightmare soul entities capable of communicating with Divers.
Stages: Faint (seed) → Bound → Deep/Grim/Prime/Origin.
Forms: Whisper (mental), Shade (shadow), Wrath (physical/aggression), Riftborn (anomaly).
♦ ECHO MARK CRYSTAL
Formed from death → residual Echo → Nightmare Essence → crystallization → Echo Mark Crystal.
Types: Faint → Deep → Grim → Prime → Origin.
Absorbed by Markwielders; Divers can but with high risk.