Realm of Darkness

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Oh no! The water! I'm in big trouble if I don't fetch it!

This article requires cleanup or improvement. Please help out by editing this page. Please see the Manual of Style and editing help before getting started. Issues: Reorganize story and areas listings to match other world articles; add room coverage from KHX (A room in the Dark Corridor Trials (闇の回廊トライアル Yami no Kairō Toraiaru?), every one is simply called Trial Area (トライアルエリア Toraiaru Eria?), in the game files the world is internally known as Dungeon (ダンジョン Danjon?).)

Realm of Darkness
Japanese	闇の世界
Romaji	Yami no Sekai
Games	Kingdom Hearts Kingdom Hearts Chain of Memories Kingdom Hearts II Kingdom Hearts 358/2 Days Kingdom Hearts Birth by Sleep Kingdom Hearts 0.2 Birth by Sleep -A fragmentary passage- Kingdom Hearts III
KHBBS tracks Field theme - Night in the Dark Dream Battle theme - Night of Tragedy KH0.2 tracks Field theme - Night in the Dark Dream Field theme - The World Within Field theme - Forest of Thorns Battle theme - Night of Tragedy
Other worlds Introduced in Kingdom Hearts Dive to the Heart | Destiny Islands | Disney Castle Traverse Town | Wonderland | Olympus Coliseum Deep Jungle | Agrabah | Monstro Atlantica | Halloween Town | Neverland 100 Acre Wood | Hollow Bastion End of the World | Realm of Darkness Introduced in Kingdom Hearts Chain of Memories Castle Oblivion | Twilight Town Introduced in Kingdom Hearts II Mysterious Tower | Radiant Garden The Land of Dragons | Beast's Castle | Timeless River Port Royal | Pride Lands | Space Paranoids The World That Never Was | End of Sea | Keyblade Graveyard Introduced in Kingdom Hearts coded Datascape Introduced in Kingdom Hearts Birth by Sleep Land of Departure | Mirage Arena Dwarf Woodlands | Enchanted Dominion | Castle of Dreams Disney Town | Deep Space Introduced in Kingdom Hearts 3D: Dream Drop Distance La Cité des Cloches | The Grid | Symphony of Sorcery Country of the Musketeers | Prankster's Paradise Introduced in Kingdom Hearts χ[chi] Daybreak Town Introduced in Kingdom Hearts Union χ[Cross] Game Central Station | Niceland | Cy-Bug Sector | Candy Kingdom Introduced in Kingdom Hearts III The Final World | Secret Forest | Olympus Toy Box | Kingdom of Corona | Monstropolis Arendelle | The Caribbean | San Fransokyo Scala ad Caelum | Quadratum

The Realm of Darkness (闇の世界, Yami no Sekai), also translated as Dark World in its playable incarnation in Kingdom Hearts 0.2 Birth by Sleep -A fragmentary passage- and Kingdom Hearts III, is a realm made up of darkness. It lies opposite to the Realm of Light, and the normal passage of time does not exist here.

The Realm of Darkness is the home of all Pureblood Heartless. It is an exceptionally dangerous place, and very few have survived a trip to the Realm of Darkness. The Realm of Darkness is also home to a special type of Keyblade, Keyblades of darkness; the only known Keyblade of darkness being Mickey's Kingdom Key D.

When a world or its heart falls to darkness, it is swallowed into this realm. The Realm of Darkness also has its own natural landmasses, often stone-like with blue glowing cracks in them. Apart from falling into the darkness oneself, the only ways to reach the Realm of Darkness are by using a Corridor of Darkness or with the power of waking.

Settings and Areas

Kingdom Hearts

The entrance to Realm of Darkness from End of the World.

The Realm of Darkness isn't playable in Kingdom Hearts, but can be briefly seen through the doors of Door to Darkness located at the Final Door area deep within End of the World. The doors lead to a cave-like area covered with organic-looking rocks, shaped like cylinders, shooting out from all over the walls. The rocks are often covered with cracks, from which a bright blue light pierces through. At the far back is a white cold light slightly illuminating the area. The cave is also covered with hordes of Heartless, with two Darksides arising as well.

Riku can also be briefly seen trapped in another part of the realm, which consists of a narrow, free-hanging grey path, continuing on into the unknown, and surrounded by seemingly endless darkness.

Kingdom Hearts Birth by Sleep

The Upper Zone area's exit.

In Kingdom Hearts Birth by Sleep Final Mix the Realm of Darkness appears playable for the first time in the series during the game's Secret Episode. After defeating Terra-Xehanort, Aqua awakes within an immense, eerie cavern known simply as the Realm of Darkness (闇の世界, Yami no Sekai). Starting at the cavern's Middle Zone (中層, Chūsō), she ventures through the Lower Zone (下層, Kasō) and Upper Zone (上層, Jōsō) before finally finding a way out. These caves are infested with Heartless and strange rock formations, as well as geysers and barriers formed from pure darkness. The various paths twist and wind and reconnect, and navigating the areas can be a struggle. The Upper Zone consists of many rocks hanging in the air, with risk of falling back down to Lower Zone. Towards the end of the Upper Zone is a path towards a spiraling purple and violet light, further leading out of the cavern and to the Valley of the Dark (闇の狭間, Yami no Hazama), a twisted and decaying forest drenched in darkness.

After defeating the Dark Hide Aqua finds herself arriving from a gloomy forest where she discovers that Castle of Dreams has fallen to darkness at the area fittingly named Dark Cinderella Castle (闇シンデレラ城, Yami Shinderera Shiro).

Area Map in Kingdom Hearts Birth by Sleep

Kingdom Hearts 0.2 Birth by Sleep -A fragmentary passage-

Past the valley is the Dark Cinderella Castle in the distance, which can be reached through a crumbling forested path sparsely lit with lanterns called the Main Road (街道, Kaidō). Surrounding the castle is the Castle Town (城下町, Jōkamachi), which is filled with empty houses, business stalls, and a fountain frozen in time in the center. Pieces of buildings float around the area. At the edges of the Castle Town, the remains of the world are crumbling into blue crystals. Beyond that is the remains of the seven Dwarfs' cottage from Dwarf Woodlands, and a mirror leading to The World Within (鏡の中世界, Kagami no Naka no Sekai, lit. "World Within the Mirror") the Magic Mirror, which resembles both the realm of the Spirit of the Magic Mirror and the Queen's dungeon. Past the mirror is the Forest of Thorns (茨の森, Ibara no Mori), a corruption of the dark forest of Enchanted Dominion which ends at the Forbidden Mountain. From there, a portal leads to similar cavernous area known as the Depths of Darkness (闇の深部, Yami no Shinbu). At the end of the path is a sandy terrain leading into a bright light; it leads to Homecoming, where Kingdom Key D is hidden.

• 

  Castle Town

• 

  The World Within

• 

  Forest Of Thorns

• 

  Depths of Darkness

At the furthest reaches of the Realm of Darkness, on the border between it and the Realm Between, is a moonlit shoreline called the Dark Margin (闇の海岸, Yami no Kaigan). Like the caverns, this beach is littered with strange, almost organic rock formations.

Story

Kingdom Hearts Birth by Sleep

Aqua fighting Heartless in the Realm of Darkness.

While wandering lost through the Realm of Darkness, Aqua is confronted by a Darkside. She prepares to fight it, but three more Darksides join the fight and she loses hope. However, she is rescued by the Earthshaker and Wayward Wind Keyblades, which make quick work of the Darksides and renew her hope. She looks at her Wayfinder and remembers all the friends she has made throughout her journey across the worlds. Smiling, Aqua vows to escape the Realm of Darkness.

However, as she moves onward, a crack of light forms in the cavern's roof and a beam of darkness fires through it. Aqua's Wayfinder stops glowing and she senses something is wrong. Aqua ventures deeper in the Realm of Darkness and comes across the Heartless, enemies she does not recognize. As residents of the Realm of Darkness, these enemies prove to be stronger than the Unversed, but Aqua manages to fight her way through them until she reaches the Dark Hide. Although the beast is vicious and powerful, Aqua finally emerges victorious after a lengthy battle. Venturing forward, Aqua is horrified when she spots the destroyed Castle of Dreams jutting out of a sea of darkness in the distance.

Kingdom Hearts 0.2 Birth by Sleep -A fragmentary passage-

Aqua continues her journey through the Realm of Darkness, passing through the remains of Castle of Dreams, Dwarf Woodlands and Enchanted Dominion. Aqua questions what happens to the people who have lost their worlds to darkness, while finding herself thinking back to when she was with her friends. She is eventually confronted by Phantom Aqua, an illusion created from the doubt in her heart by the darkness. Once it is defeated, Aqua finds manifestations of Terra's and Ventus's hearts; Terra is able to converse with her, while Ven remains comatose. However, Xehanort attempts to use this link to find out where she hid Ven. Terra fights off Xehanort, who summons the Dark Figure to drag Aqua further into darkness.

Aqua is rescued by Mickey, who informs that an entire decade has passed since the battle with Xehanort. Mickey informs her they need to find Kingdom Key D, to help Sora and Riku seal the Door to Darkness to keep the Heartless from escaping and destroying the worlds. Upon finding the Keyblade they need, the duo finds a Demon Tide attempting to attack Riku; Aqua tethers it with her magic, getting pulled into a secluded part of the Dark Realm. Mickey is left to focus on sealing the Door and hoping to find Aqua again. Once she defeats the Heartless, Aqua rests; she is content to wait for her rescue, knowing now that the Realm of Light is safe with Sora and Riku there.

Kingdom Hearts

When Riku continues to resist against his possession, Ansem banishes the boy's heart to the Realm of Darkness. Riku's heart manifests as his former self, lamenting over his foolishness in abandoning his home and friends all for the sake of dark power. He hears Mickey call out for his help. Mickey lets him know that he has retrieved a Keyblade of darkness, with which they can close the Door to Darkness. Riku agrees to help, and continues onward to find the door.

Later, after Sora reaches the deepest depths of the End of the World, he finds Ansem preparing to open the Door to Darkness, so that he can enter the Realm of Darkness and the Kingdom Hearts of Worlds' Hearts laying within it. Though Sora defeats Ansem, the door has already opened and darkness begins spilling out. As Sora and his friends struggle to shut the door, they see Mickey and a restored Riku on the other side, and together, they manage to close the door.

Kingdom Hearts Chain of Memories

Riku awakens from his slumber in the Realm of Darkness when an unseen presence, later revealed to be DiZ, gifts him a magic world card and asks him to choose between slipping back into sleep, or taking the card and making his way toward the truth. Riku decides that going back to sleep would be boring, and confidently takes the card. He is taken by the card through a corridor of darkness to the lowest basement of Castle Oblivion. As Riku makes his way through the castle, he is contacted by Mickey, who is still trapped within the Realm of Darkness, but encourages Riku to persevere. As Riku reaches the top of the castle, Mickey finally finds a way out of the Realm of Darkness in the form of another card, which showed him Riku's heart and led him through a corridor of darkness constructed by Organization XIII.

Kingdom Hearts II

When they encounter Saïx at the Battle of the 1000 Heartless, Sora begs Saïx to let him into the Realm of Darkness, but the Nobody coldly refuses and prepares to attack. Maleficent begrudgingly rescues Sora and his friends by transporting them to the Realm of Darkness, where they run into a disguised Riku-Ansem. He leaves them a sea-salt ice cream bar and a photo of Roxas in Twilight Town as clues to get to The World That Never Was, rescue Kairi and destroy Organization XIII. They follow the clues to the Old Mansion, hoping that the Simulated Twilight Town will have another path to the Realm of Darkness.

After defeating Xemnas within his "The World of Nothing", Sora and Riku end up at the Realm Between's side of the Dark Margin. They patiently wait there until Kairi's Letter washes up on the shore. The Door to Light appears as they read it, allowing them to return home to Destiny Islands.

Blank Points

Eventually, Aqua finds Ansem the Wise sitting on the coast of the side of darkness, having been sent there by the explosion of the Kingdom Hearts Encoder, though he is slowly losing his memories again. Aqua and Ansem have a conversation about the worlds and how Ansem came to know Sora. This leads Aqua to shed tears of hope and say Sora's name, knowing that he will save her and her friends.

Kingdom Hearts III

Later on, Ansem, Seeker of Darkness confronts Aqua and Ansem the Wise at the Dark Margin, seeking Ansem the Wise's hidden work. Aqua tries to defend against Ansem, Seeker of Darkness, but without her Keyblade, she is hit by a glob of darkness and thrown into the seas of the Dark Margin, where she is corrupted into Anti-Aqua.

King Mickey and Riku arrive shortly afterwards, but are repelled by a Demon Tower that breaks Riku's Way to the Dawn and damages Mickey's Kingdom Key D; they retreat to better arm themselves. They later return after failing to find other leads, only for Anti-Aqua to imprison Mickey in a Demon Tower and steal his Star Cluster, planning to trap them in her place. However, Sora is able to use the Master's Defender to reach them. Destroying the Demon Tower and freeing the King, Sora battles Aqua and liberates her from the darkness. The Keyblade wielders return to Destiny Islands.

After Xehanort's defeat, Terra, Ventus, and Aqua entered the Realm of Darkness to find Sora, who had disappeared after the battle.

Enemies

Other

Anti-Aqua

Trivia

• According to the Director's Secret Report XIII, the Dark Margin is the tip of a world in the Realm Between reaching into the Realm of Darkness. The Kingdom Hearts II game files and the official Kingdom Hearts website refer to this world as End of Sea (エンド・オブ・シー, Endo obu Shī).