Giant Hole Pioneers Version 0.3

Depth: Approximately 15,500+ m below.
This layer has the least amount of data.
It is considered the deepest known part of the abyss to humans.
Much of the landscape remains largely undiscovered.
The environment upstairs is vastly different from that upstairs.
The survey was so difficult to conduct that there was virtually no data available from ordinary surveyors.
What lies beyond remains a mystery.
The connection between Floor 7 and the true depths of the Abyss has not yet been fully revealed.
Overview: ❓🌑 Mysterious lands + Unexplored regions

Depth: Approximately 13,000–15,500 m.
This area is very different from the upper floor.
There are ruins of buildings and traces of ancient civilization.
The landscape is vast and complex.
There are areas that look like ancient cities or communities.
It is the location of the Village of the Hollows / Iruburu.
There are structures built by living organisms in this layer.
Ecosystems and environments are unique.
Returning to the upper floors is virtually impossible for most humans.
This floor has therefore earned the nickname "Capital of the Unreturned".
There are many areas that have not yet been fully explored.
Overview: 🏛️🏘️ Ruins of a civilization + city + vast territory.

Depth: Approximately 12,000–13,000 m.
The landscape is vast and resembles a sea.
There are water areas and surfaces that are distinctly different from the upper layer.
Low temperatures and harsh environmental conditions.
There are cliffs and large rock structures.
Some areas resemble coastlines or sea areas.
The light from above is almost irrelevant now.
There is a path that connects to the Ido Front area.
Ido Front is located at the end of this floor and is an important landmark before entering the 6th floor.
This is one of the areas where explorers need to be thoroughly prepared before continuing their journey.
Overview: 🌊❄️ Sea + Cliffs + Cold Area + Large Structures

Depth: Approximately 7,000–12,000 m.
It is one of the layers with remarkably massive vegetation.
Giant flowers and unusual plants are scattered throughout the area.
There are pools and wetlands.
The landscape consists of forests, valleys, and lowlands.
There is an area that appears to be a large ecosystem of its own.
Visibility in some areas is obscured by large vegetation.
There are creatures that are very good at hiding in their environment.
Nanachi's Hideout is located on this floor.
This layer has beautiful scenery, but is also extremely dangerous.
Overview: 🌺🌳 Giant forest + giant flowers + pond + valley

Depth: Approximately 2,600–7,000 m.
The landscape changed from forest to massive ravines.
It is surrounded by steep rock walls.
There are cliffs and large gaps.
The path is not a continuous flat surface like the upper level.
Explorers must travel through numerous vertical areas.
There are areas with cavities and caves along the walls.
The deeper you go, the darker and more uncertain the environment becomes.
This is the level where climbing and maintaining positional control are extremely important.
Overview: ⛰️ Gorges + High cliffs + Caves

🟡 Level 2 — Forest of Temptation
Depth: Approximately 1,350–2,600 m.
It is a large forest with giant trees and dense vegetation.
The landscape includes high and lowlands, cliffs, and valleys.
There is an area called the Inverted Forest.
The nature of the forest and the landscape can easily make navigation confusing.
There are more numerous and dangerous creatures on this floor than on floor 1.
Ozen's Seeker Camp is located on this floor.
There is a path for resting and preparing before descending to the 3rd floor.
In some areas, there are large vegetation plants that can obstruct the view.
Overview: 🌳🌳 Giant forest + ravine + cliffs

Depth: Approximately 0–1,350 m.
This is the floor closest to the city of Orth.
The landscape is mostly forested, with valleys, cliffs, and slopes.
There are natural pathways that are relatively easy for explorers to navigate compared to the deeper layers.
Light from above can still shine down, so this area is not completely dark.
There is a wide variety of plants and animals.
It serves as a training ground for entry-level Cave Raiders.
There are numerous caves and passageways along the abyss walls.
As we travel deeper, the terrain becomes steeper and more complex.

floor
name
Approximate depth
1
The Edge of the Abyss
0–1,350 m
2
Forest of Temptation
1,350–2,600 m
3
Great Fault
2,600–7,000 m
4
The Goblets of Giants
7,000–12,000 m
5
Sea of ​​Corpses
12,000–13,000 m
6
Capital of the Unreturned
13,000–15,500 m
7
The Final Maelstrom
15,500 m+
In total: The abyss is at least approximately 15.5 kilometers deep, and the depth of strata 7 and beyond is still unknown.

Explorer
ancient artifacts
Ability characteristics
Ozen
Curse-Warding Box
Helps prevent/reduce the effects of the Abyss curse.
Bondrewd
Zoaholic
Linking consciousness allows for the transmission of consciousness to another body.
Bondrewd
Sparagmos
An ancient device that emits a powerful beam of energy.
Lyza
Blaze Reap
An ancient weapon in the form of a shovel with high destructive power.
Riko
Star Compass
The compass needle points downwards towards the abyss.
Riko
Lyza's White Whistle
It is used as a tool for deep exploration and possesses unique properties of the White Whistle.

Explorers / Group
stronghold
floor
Ozen
Seeker Camp
2nd floor
Marulk
Seeker Camp
2nd floor
Subterranean Bandits
Seeker Camp
2nd floor
Nanachi
Nanachi's Hideout
4th floor
Bondrewd
Ido Front
5th floor
Umbra Hands
Ido Front
5th floor
Srajo / Hail Hex
There is no confirmed permanent base of residence.
Unknown
Lyza
There is no current source to confirm this.
Unknown
Wakuna
Unknown
Unknown
Riko / Reg
No permanent base.
Exploring deeper layers.
Habolg
Orth
Level 0 / Surface
Sorted by level:
Floor 0: Orth → Habolg
Level 2: Seeker Camp → Ozen, Marulk, Subterranean Bandits
Floor 4: Nanachi's Hideout → Nanachi
Floor 5: Ido Front → Bondrewd, Umbra Hands
Floor 6+: Riko / Reg → No permanent base.
Srajo / Wakuna / Lyza: Their current base is unknown.

Living things
Layers that may be found
Highlights
Hammerbeak
1
Small, fast-moving birds of prey.
Silkfang
1–2
A spider-like creature that builds webs.
Crimson Splitjaw
1–2
Large and agile predators.
Madokajack
2–3
Predators found in the deep forest.
Corpse-Weeper
2–4
They exhibit imitative and baiting behaviors.
Inbyo
2–3
Small organisms in the forest area.
Orb Piercer
3–4
A hunter with keen senses and precise attacks.
Tachikan
3–4
Inhabited by deep-sea organisms.
Torkas
4
Large organisms in the area of ​​the 4th floor.
Baldur
4
Predatory creatures with aggressive behavior.
Giant Hammerbeak
4–5
A large relative of the Hammerbeak.
Cradle Fish
4–5
Organisms that live in aquatic environments.
Goblet of Giants
4–5
A colossal creature is found on the 4th floor.
Demon Fish
4–6
Large aquatic animals in deep waters.
Narehate creatures
6
Organisms associated with layer 6.
Naritantan
6
Native organisms of the 6th floor.
Turbinid-Dragon
6
Large and dangerous creatures.
The monster of the 6th floor.
6
They are highly diverse and adaptable to harsh environments.
Deep-sea creatures of unknown species.
6–7
Information about several species has not yet been released.
Seventh-class organisms
7
There is still not much information disclosed.
Divided into classes in a short way.
Layer 1: Hammerbeak, Silkfang, Crimson Splitjaw
Level 2: Madokajack, Corpse-Weeper, Inbyo
Level 3: Orb Piercer and Vertical Space Organisms
Floor 4: Orb Piercer, Torkas, Baldur, Goblet of Giants, and aquatic creatures.
Floor 5: Large organisms and aquatic animals from the deep sea.
Floor 6: Naritantan, Turbinid-Dragon, and Narehate/Deep-sea creatures.
Floor 7: The information is still very limited.

Object level
Commonly found layers
Level 4
Floors 1–2
Level 3
Floors 1–3
Level 2
Floors 2–5
Level 1
Floors 4–6
Special level
Floors 5–7+

Level 4
Sun Sphere
Scaled Umbrella
Rock Top
Level 3
Fog Weave
Gentle Knock
Mermaid Burp
Princess Bosom
Third Works
Ghost Seek
Level 2
Far Caress
Forgetter
Gold Shaker
Tomorrow Signal
White Whistle
Level 1
Deep Sea Lion
Star Thread
Unheard Bell
Zoaholic
Special level
There are also items that are categorized differently by source material, especially objects that were further revealed in the manga.
The exact level is unknown.
Star Compass
Cradle of Desire
Altar of the Absolute Boundary
Curse-Warding Box
Sparagmos
Gangway
Shaker
Popple Gun
Ripe Thing
Gorebag
Cold Fantoccini
Wonder Wordless
Shiny Swarm
Muscle Dress
Apsenti
Canopy Unto Dawn
Crumple Pot
Hard Scrub
Lyza's Letter
And others.

Level 4 — Low value. Abilities are not outstanding, or benefits are not yet clearly understood.
Level 3 — Useful and highly valuable, aiding in in-depth exploration.
Level 2 — Rare. Possesses a special ability that can change people's lives.
Level 1 — Extremely rare or highly versatile; may have an impact on international power.
Special Grade — The rarest and most powerful, capable of changing the world or the balance of power between nations.
Special Off-System: Aubade (Supreme Treasure of the Depths) is a non-official classification for items that possess characteristics superior to ordinary antiquities.

Because ascending to the sixth floor will incur a severe curse, potentially leading to loss of humanity or death.

The large cities situated around the entrance to the Abyss served as hubs for explorers and adventurers from all over the world.
🏘️ City area: Features shops, hotels, guesthouses, and markets for explorers.
🗼 Exploration Tower: Mission acceptance point, equipment check, and explorer registration.
🏛️ The Explorers' Guild: Training and Licensing Facility (Whistle Level)
🛒 Explorer's Market: Selling ropes, food, climbing equipment, and exploration tools.
🕳️ The entrance to the abyss: The starting point of the journey down to the first level.
🏥 Medical Clinic: For treating explorers who have been injured or affected by the curse.

⚪ White Whistle: Top-level explorers can descend to very deep levels and use a special tool called Your Worth.
• Black Whistle: Used by advanced explorers who can descend to deeper levels than ordinary explorers.
🔵 Blue Whistle (Moon Whistle): Intermediate explorer, beginning to gain experience and able to explore dangerous areas.
🟢 Red Whistle: Beginner level, suitable for training in exploring upper floors.
🟠 Brown Whistle (Bell): A trainee who does not yet have the right to venture into the depths freely.
Order from lowest to highest:
🔴 Red → 🔵 Blue → ⚫ Black → ⚪ White

Level 1 — The Edge of Depth: Dizziness and Nausea
Level 2 — The Illusionary Forest: Severe nausea, headache, and partial numbness.
Level 3 — The Great Sea of ​​Death: Severe dizziness, loss of balance, and possible hallucinations.
Level 4 — The Giant Cup: Intense pain, bleeding from various body orifices, and distorted senses.
Floor 5 — Sea of ​​Corpses: Partial loss of senses, confusion, and intense pain.
Floor 6 — The Capital of the Unreturnable: Loss of Humanity or Death.
Level 7 — The Abyss: Death — The effects of the curse are still unclear, but returning from this level is virtually impossible.

The final level, with almost no concrete information, leaves no one knowing for sure what lies beneath. All the mysteries of the abyss seem to lead to this place.

A land where returning to the surface comes at a price so severe that almost no one can ever return to their former lives. Here, communities, strange creatures, and the secrets of the depths await.

The boundary before entering the true depths; the atmosphere and environment change drastically, filled with mysteries and dangers that even highly skilled explorers must be wary of.

A vast area teeming with strange plants and creatures, the beauty of nature hides a grave danger.

The area is full of cliffs and vertical paths, making travel extremely difficult, and danger can strike from all directions.

A vast forest with a complex landscape, teeming with dangerous creatures and strange plants; it's easy to get lost.

Near the surface, the area features forests and massive cliffs, making it suitable for novice explorers, but it also harbors strange creatures and natural traps.