Underworlds

Dark Areas & Cocytus

Every Digital World has its own underworld, each kept by a different authority with a different role. Beneath them lies Cocytus, a single lowest layer shared by every world, where the most dangerous powers of the dark make their stronghold and no one is named its ruler.

Underworlds
One per Digital World
Deepest layer
Cocytus, shared by every world
Ruler of Cocytus
None named in any source
Notable powers
Seven Great Demon Lords, GranDracmon, Gulfmon

Three underworlds

functional underworlds with different keepers, not branches of one organization

Digital World (Classic)

Dark Area

Anubismon guards and supervises it as the judge of the Digital World: good data is reborn as Digi-Eggs, evil data is sealed in darkness.

AnubismonAnubismonGuardian & judge

Established Lore Leads down to Cocytus.

Digital World: Iliad

Dark Area

The lowest layer of Iliad, ruled by Plutomon apart from the Olympos XII: working DigiCores return upward as Digi-Eggs, badly bugged ones are imprisoned.

PlutomonPlutomonRuler

Established Lore Leads down to Cocytus.

Digital World: Shambala

Yomi

An underworld equivalent to the other worlds' Dark Areas. Enmamon rules it and confines bugged DigiCores for good, but is itself bound to Yomi.

EnmamonEnmamonRuler, one of the Tentei Hachibushu

Unconfirmed A link to Cocytus is plausible but not stated.

Authorities compared

three keepers, three different kinds of authority

UnderworldAuthorityRole in official textWhat happens to the deadLink to Cocytus
Dark Area (Classic)AnubismonGuardian and supervisor; judge of the Digital WorldGood data is reborn as Digi-Eggs; evil data is sealed in eternal darkness or left wandering the Dark AreaStated (Profile #035)
Dark Area (Iliad)PlutomonRuler, acting apart from the Olympos XIIWorking DigiCores return as Digi-Eggs; seriously bugged ones are imprisoned; Titan souls are kept in ErebusStated (Profile #035)
Yomi (Shambala)EnmamonRuler, and one of the Tentei Hachibushu; itself unable to leaveBugged DigiCores are confined in Yomi and never reborn on the surfaceNot stated
No source calls any of the three the sovereign of all underworlds. Their worlds keep separate administrations, and their roles differ: Anubismon judges, Plutomon rules and hunts the wicked even among the living, and Enmamon governs a realm it is bound to itself.

Cocytus

the shared deepest layer

Established Lore

Digimon Profile #035 describes a lowest-layer area, Cocytus, that connects from each Dark Area. It is common to every Digital World, and only one exists. The profile names the ordinary Digital World and Iliad; it predates Shambala and does not mention Yomi.

Cocytus has no named ruler. The Seven Great Demon Lords, GranDracmon and Gulfmon all make it their stronghold, but they are separate powers, not a single government. The Seven keep a balance by not interfering with one another, though they have joined forces for a common goal.

Seven Great Demon Lords

7 membersEstablished Lore

Seven Evil King Digimon, each bearing the Crown of a deadly sin. Profile #035 and the official Digimon Chronicle X story both place their stronghold in Cocytus, the lowest layer of the Dark Area; individual profiles speak of the Dark Area's heart and its deepest parts, and Leviamon sleeps in the Net Ocean near it.

Lucemon Chaos ModeLucemon Chaos ModePride LeviamonLeviamonEnvy DaemonDaemonWrath Belphemon Rage ModeBelphemon Rage ModeSloth BarbamonBarbamonGreed BeelzemonBeelzemonGluttony LilithmonLilithmonLust
Open the Seven Great Demon Lords roster →

Embodiment of the Seven Sins

Related, not an eighth member

Ogudomon is a Super Demon Lord holding all the sins of the Digital World together with the power to atone for them. Its profile never counts it among the Seven. Its X-Antibody form, Ogudomon X, further amplifies the Seven Great Demon Lords' evil thoughts and destructive urges, and its arms and head become blades carrying each of their powers.

OgudomonOgudomonSum of the sins Ogudomon XOgudomon XX-Antibody form
Continuity-Specific In the official Digimon Chronicle X story, the defeated Seven are dragged down to Cocytus, where seven copies of Diaboromon X absorb them and fuse into Ogudomon X; Lucemon X meant to destroy the whole Digital World by becoming it. After Jesmon GX cuts it down, the released Seven return to Cocytus.

Independent powers

inhabitants of the depths that answer to no one

GranDracmon
Mega
GranDracmon
🌙 King of vampires
Keeps its own castle in the Dark Area; not even the Seven Great Demon Lords dare interfere with it.
View on DigimonWiki→
Gulfmon
Mega
Gulfmon
⚠ Dark Beast of the abyss
A mountain-sized beast from the abyss; its lower maw crushes DigiCores beyond escape.
View on DigimonWiki→

Established Lore Profile #035 introduces GranDracmon and Gulfmon together: like the Seven Great Demon Lords, both make Cocytus their stronghold, and each is an extremely dangerous being.

GranDracmon is the king of all vampire Digimon. It has long kept its own castle in the Dark Area, and its power is so overwhelming that not even the Seven dare to interfere with it; it is believed to have been involved in the creation of the Dark Area and to know the truth behind the mysterious Death-X-evolution. It is not a Demon Lord.

Gulfmon is a Dark Beast that emerged from the abyss of the Dark Area. Its giant maw is said to connect to that abyss, and it is described as capable of destroying the world in seven days. Neither it nor GranDracmon is called the ruler of Cocytus.

Notable relationships

who lives where, and how firmly each link is established

Sources

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Names link to DigimonWiki/Fandom (CC BY-SA unless noted otherwise); artwork © Bandai, shown from the official Digimon Reference Book. The atlas is an editorial model built from official material, not a universal chain of command. Anubismon is Anubimon in Japanese material.