This article is about the castle. You may be looking for the Keyblade, "Oblivion".
Castle Oblivion

Castle Oblivion KHCOM

Castle Oblivion Logo KHCOM

Kana/Kanji 忘却の城
Romaji Boukyaku no Shiro
French Manoir Oblivion
German Schloss des Entfallens
Spanish Castillo del Olvido
Italian Castello dell'Oblio
Games Kingdom Hearts: Chain of Memories
Kingdom Hearts 358/2 Days
Kingdom Hearts coded
Kingdom Hearts Birth by Sleep

Kingdom Hearts: Chain of Memories tracks
Field theme - The 13th Floor
The 13th Floor
Field theme - Castle Oblivion
Castle Oblivion -ReCoM-
Battle theme - Forgotten Challenge
Forgotten Challenge -ReCoM-
Kingdom Hearts Re:coded tracks
Field theme - Castle Oblivion
Battle theme - Forgotten Challenge
Other Worlds
Introduced in Kingdom Hearts
Dive to the HeartDestiny IslandsTimeless River/Disney Town/Disney CastleTraverse TownWonderlandOlympus ColiseumDeep JungleAgrabahMonstroAtlanticaHalloween TownNeverlandRadiant Garden/Hollow Bastion100 Acre WoodEnd of the WorldKingdom HeartsRealm of Darkness
Introduced in Kingdom Hearts: Chain of Memories
Land of Departure/Castle OblivionTwilight Town
Introduced in Kingdom Hearts II
Mysterious TowerThe Land of DragonsBeast's CastlePort RoyalPride LandsSpace Paranoids100 Acre WoodThe World That Never WasKeyblade Graveyard
Introduced in Kingdom Hearts coded
Introduced in Kingdom Hearts Birth by Sleep
Dwarf WoodlandsEnchanted DominionCastle of DreamsDeep SpaceMirage Arena
Introduced in Kingdom Hearts 3D: Dream Drop Distance
La Cité des ClochesThe GridPrankster's ParadiseCountry of the MusketeersSymphony of Sorcery
Introduced in Kingdom Hearts χ
Daybreak Town
Introduced in Kingdom Hearts III
Kingdom of CoronaToy BoxArendelleMonstropolisSan FransokyoOlympusThe CaribbeanThe Final WorldScala ad Caelum



Castle Oblivion is a world found in the Realm Between in Kingdom Hearts: Chain of Memories and Kingdom Hearts Re: Chain of Memories as the only real world in the game. It also appears within cutscenes in Kingdom Hearts II, Kingdom Hearts II: Final Mix, Kingdom Hearts 358/2 Days, Kingdom Hearts Birth by Sleep, and Kingdom Hearts Birth by Sleep Final Mix. It also appears as a digital copy in Kingdom Hearts coded and Kingdom Hearts Re:coded. The castle was ruled by Marluxia of Organization XIII, and consists of thirteen floors and twelve basements.


Castle Oblivion is set in the midst of large grassy plains and hills. When one reaches the castle, there are rough stalagmites sprouting from the ground. The castle's architecture is very remarkable, with its tower's tops resembling an interesting isosceles triangle, and a noticable monster with horns on the center of the castle. Two smaller parts of the castle, lieing on floating islands are joined to the main structure by chains. Inside the castle are rooms called White Rooms,  the walls of which have intricate emblems embedded on them.. The Chamber of Waking, which was once the throne room of the palace in the Land of Departure, houses the throne on which sits Ventus, who lies comatose in safety until the time comes for him to wake again.

The castle's secrets and layouts are unknown to outsiders, because Aqua was told by Master Eraqus to keep it a secret to prevent any intruder or agent of darkness from entering unbidden.

Journal Entries

Kingdom Hearts: Chain of Memories

Sora's Tale I

Our friends may be here...It was that thought that led us to Castle Oblivion, where cards rule all.

A mysterious man gave Sora a card, and using it took us to Traverse Town—of all places!

It turned out the town was just a figment of our own remembrances, the first world of many that lie in Sora's heart.

And so our journey through these worlds begins.


Kingdom Hearts Birth by Sleep

"Just use the key, and this land will be transformed. From that day forward, all who visit this land will be lost to oblivion, none ever able to solve the mystery. None, Aqua, except you."
—Master Eraqus to Aqua

Aqua in front of Castle Oblivion.

Castle Oblivion was initially the world Land of Departure. After the defeat of Master Eraqus at Terra's hand, Master Xehanort summoned the darkness to destroy the world. Aqua would later bring a comatose Ventus to the Land of Departure to keep him safe.

As Aqua walks into the dilapidated castle, she remembers a "secret" that Master Eraqus told her when she became a Master. He told her that he and his anscestors were, and had always been the protectors of the world and that if anything ever happened to him, she should seal the world's Keyhole with the Keyblade to prevent darkness from completely overruning the world. She was also advised to recreate the world so that only she knew the structure and layout of it and that any unwelcome visitors would be "lost to oblivion".

As a result, she used the Master Keeper to seal the world's Keyhole and recreated the world into Castle Oblivion. She then leaves Ven in the newly-formed Chamber of Waking and promises to bring Terra back with her before waking him up. When Aqua departs from the building to go look for Terra, she turns around to look at her new home, where the player first sees the newly-transformed exterior and recognizes the world to be Castle Oblivion.

Between Kingdom Hearts Birth by Sleep and Kingdom Hearts: Chain of Memories

The castle was eventually found by Xemnas of Organization XIII, who decided to convert it into a second headquarters for the Organization. It was intended to be a place to research memories, an important topic to the Nobodies of the Organization, who have only their memories to form personalities with. Xemnas sent Xigbar and Xaldin to recruit more members for the Organization, as they needed a large group in order to run the castle. The castle was also used as part of the Replica Project, which was dedicated to recreating the powers of the Keyblade for Organization XIII's use from Sora's, and eventually Riku's memories. Xion and Riku Replica are the only known successful — yet imperfect — creations born from this project, through fragments of Sora and Riku, respectively.

According to a flashback in Kingdom Hearts II Final Mix that takes place in between Kingdom Hearts Birth by Sleep and Kingdom Hearts, Xigbar and Zexion discussed the new castle and the Chamber of Repose, which housed Aqua's armor and Keyblade, that Xemnas constructed in Radiant Garden while he was Xehanort, and which he frequently went to. Xigbar believed that Xemnas was looking for the complementary Chamber of Waking, and that this place might be somewhere in Castle Oblivion.

Eventually, a strange Nobody named Naminé appeared in the castle and was found by the Organization. She soon became the center of their research, due to her strange abilities of memory manipulation. In order to further research, pods were developed that could be used to piece together memories. Xemnas had entrusted the castle and Naminé to the neophyte Marluxia, but he would soon plot to use this power in a bid to seize control over the Organization. While Marluxia and his associates, Larxene and Axel, controlled the top half of the castle, the senior members Vexen, Lexaeus, and Zexion controlled the basements. Throughout their appearances, they are shown to have a strong rivalry.

Kingdom Hearts: Chain of Memories

After defeating Ansem, Seeker of Darkness, and restoring the damaged worlds, Sora, Donald Duck, and Goofy find themselves in a grassy field with the King's dog, Pluto. They follow Pluto along the path to Castle Oblivion, and as soon as they enter the castle, they forget all of their skills and are forced to rely upon the castle's memory-based card system.

Although Marluxia and Larxene tell them their memory loss is simply the nature of the castle, it is revealed that the mysterious girl Naminé is actually the one reshaping Sora's memories, so that Marluxia can use Sora as a puppet against Xemnas. The scheme fails thanks to the meddling of Axel, who frees Naminé, and Marluxia and Larxene are destroyed at Sora's hand. Sora then uses one of Xemnas's pods so that Naminé can restore his memories, and is eventually moved to Twilight Town.

Meanwhile, Sora's friend Riku awakens from the darkness within the lowest basement of Castle Oblivion, where he faces the remaining darkness of "Ansem". Though he initially sets out to destroy the indelible darkness in his heart, with the help of DiZ, Naminé, and King Mickey, he is able to eventually embrace both the light and the dark, achieving a balance.

The three basement members, Vexen, Lexaeus and Zexion are troubled by Marluxia's actions, so they send Vexen to investigate for them. After Vexen is elmininated by Axel, Lexaeus and Zexion seek to recruit Riku in order to counter Marluxia's use of Sora, but Riku denies their request and summons his darkness in order to vanquish Lexaeus. Once Marluxia is destroyed, Zexion decides that Riku is of no use any more, calling him a 'nuisance' while in a conversation with Axel. He then confronts Riku and uses his powers of illusion to envelop the boy in light. With the help of Naminé, disguised as Kairi, Riku discovers the ruse, and after accepting the darkness, strikes Zexion, forcing the Nobody into fighting him. Riku defeats him, but Zexion manages to escape, before being betrayed by Axel, who uses the Riku Replica to destroy him, under orders from Saïx. Riku eventually defeats the Ansem in his heart, and decides not to have Naminé seal it away completely; instead setting out on the "road to dawn" in order to help while Sora is sleeping.

Kingdom Hearts 358/2 Days

Kingdom Hearts 358/2 Days takes place between Kingdom Hearts and Kingdom Hearts II, and so in this game many of the castle's secrets are revealed. After members of Organization XIII are sent to Castle Oblivion (which starts the events in Kingdom Hearts: Chain of Memories), Roxas learns from Demyx and Xigbar that the members assigned to Castle Oblivion were annihilated. Xion later goes to Castle Oblivion seeking answers about her existence.

Axel tries to stop her, but his efforts are futile. Later, when Roxas learns from Axel that Xion was born in Castle Oblivion, he becomes determined to investigate the place for himself. However, he had barely walked in the door when he was overcome by a strange weakness and passed out entirely, due to how close he physically was to Sora and Ventus. However, when he woke up, he shouted, "Riku!" In that instance, he forgot what he just said.[1]

During conversations between Axel and Saïx, Saïx asks Axel if he has found the Chamber of Waking, to which Axel replied that it was difficult to find since Castle Oblivion is huge and it is currently unknown if that room was ever found. It is also revealed that Axel would be sent various times by Xemnas to find the room, showing Xemnas's extreme determination to find the Chamber of Waking, yet he never could. Aqua, as per Master Eraqus's suggestion, had specifically designed the castle for its secrets to be known to nobody but herself. Thus, Aqua's design led Axel to be "lost in oblivion".

Kingdom Hearts II

The Castle's inside was seen in the opening credits of Kingdom Hearts II, featuring Sora's battle with Marluxia, Riku's battle with Ansem, Naminé's placing Sora in the Memory Pod, as well as several other important events in Kingdom Hearts: Chain of Memories illustrated in full computer graphics. The outside of Castle Oblivion was briefly shown in Roxas's final dreams, as Sora's memories end as he opens the door.

Kingdom Hearts coded

After defeating the data incarnation of Sora's Heartless and restoring the data worlds to their default settings, the now amnesiac Data-Sora is brought to a data Castle Oblivion by Mickey and Data-Riku. There he encounters, unknown to him, Data-Roxas, who gives him worlds cards to visit data worlds he no longer remembers. As Data-Sora continues onward, Data-Roxas gives him warnings that unless he lets go of the lingering sorrow of losing the memories of those he just met, darkness will swallow his heart. However, Data-Sora advances through each of the worlds and ends up fighting Data-Roxas out of annoyance. Upon his defeat, Data-Roxas knows Data-Sora is ready to see the aching memories buried deep in the Journal and melds into him, allowing Data-Sora to feel his anguish of the real Roxas's disappointment of the time he spent in Twilight Town being fake.

Upon using the Castle Oblivion world card, Data-Sora finds a Data-Naminé waiting for him in a recreation of the Pod Room. She explains that there are others connected to the real Sora's heart that are in need of rescue, which is behind the mysterious message in the Journal. However, Sora needed to be tested to see if he can handle the hurt of the memories or lose his heart to the pain he would feel. Not wanting Data-Sora to go in alone, Mickey offers to see the painful memories with him. Upon touching an orb of light that hold the memories, Data-Sora and Mickey see Roxas, Axel, Xion, Naminé, (and much to Mickey's surprise) Terra, Ventus, and Aqua. Data-Naminé tells Data-Sora that they are all waiting for him to free them from their respective torments. Data-Sora also gives Data-Naminé a message from the Journal meant for her: "Thank You".

One notable feature of this incarnation of Castle Oblivion is that the White Rooms do not change form completely; the design remains like the rest of the castle, although the shape of the room differs. Pictures of areas from the worlds are displayed on the walls.

Kingdom Hearts Dream Drop Distance

Ventus continues to sleep within the Chamber of Waking, following the end of Sora and Riku's Mark of Mastery exam. Upon Sora's return to Traverse Town, he smiles as a result of Sora's happiness.


COM image Name Journal Entry
Naminé (ナミネ Namine?)
See Gallery

A young witch who can manipulate memories.

Under orders from the Organization, Naminé shadowed Kairi and altered Sora`s memory. But the forgiveness in Sora`s heart moved her to disobey those orders.

Now she watches over Sora until the reconstruction of his memories is complete.

Riku Replica
Riku Replica (Riku-RepurikaRiku Replica?)
See Gallery

A replica of Riku created by Vexen from the real Riku's data.

Through Naminé's power he was infused with false memories and made to believe he was the real Riku.

The truth has wounded him deeply.

DiZ (ディズ Dizu?)
See Gallery

Truly an enigma.

DiZ appeared before Riku in the guise of Ansem, presenting him with choices regarding the darkness within his heart.

It is said he and the king have met.

Vexen KHD
Vexen (ヴィクセン Vikusen?)
See Gallery

No. 4 in the Organization.

He, Lexaeus, and Zexion have been in the group since its inception, and there is no love lost between them and neophytes like Marluxia.

After battling Riku, Vexen turned to events unfolding aboveground, but successive failures led to his termination by Axel.

Lexaeus KHD
Lexaeus (レクセウス Rekuseusu?)
See Gallery

No. 5 in the Organization.

A born warrior, Lexaeus effortlessly brandishes a gigantic tomahawk.

To counterbalance his rival Marluxia's bid to gain control over Sora's power, Lexaeus tried to conquer Riku, but was defeated by Riku's dark powers.

Zexion KHD
Zexion (ゼクシオン Zekushion?)
See Gallery

No. 6 in the Organization.

Zexion generally avoids dirtying his own hands when there are deeds to be done. However, with the destruction of Vexen and Lexaeus, he was forced into action against Riku.

Disguised as Sora, Zexion confronted Riku. But Riku no longer feared the dark, and victory was beyond Zexion's reach.

Axel 3 KHD
Axel (アクセル Akuseru?)
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No. 8 in the Organization.

He is a Nobody whose intentions and secrets are hidden from all.

Axel has no qualms about exploiting others to suit his needs. He used Sora and Naminé to silence Marluxia and halt his plot to take over the Organization.

Axel claims he and Sora have something in common, but that connection is unclear.

Marluxia KHD
Marluxia (マールーシャ Mārūsha?)
See Gallery

No. 11 in the Organization.

Marluxia lured Sora to Castle Oblivion in the hope of using his power to seize control over the Organization.

He ordered Naminé to alter Sora's memories, and fooled Vexen into challenging the Keyblade bearer. All was going according to plan, but Marluxia's scheme dissolved when Axel set Naminé free.

Marluxia was ultimately destroyed by Sora.

Larxene KHD
Larxene (ラクシーヌ Rakushīnu?)
See Gallery

No. 12 in the Organization.

Larxene conspired with Marluxia to take over the Organization, and intended to pull Axel in as well.

However, her abrasive, unfeeling personality eventually proved her downfall—provoking Sora's anger was a fatal error.

358 icon Name Journal Entry
Naminé (ナミネ Namine?)
See Gallery

No entry

DiZ (ディズ Dizu?)
See Gallery

No entry

Vexen KHD
Vexen (ヴィクセン Vikusen?)
See Gallery


Founding member. A brilliant scientist with dominion over ice... and a personality to match.

Weapon: Shield

Lexaeus KHD
Lexaeus (レクセウス Rekuseusu?)
See Gallery


Founding member. Tremendously strong, but surprisingly quiet—stalwart as the earth itself.

Weapon: Axe Sword

Zexion KHD
Zexion (ゼクシオン Zekushion?)
See Gallery


Founding member. An intellectual with no room for feelings. He can create illusions at will.

Weapon: Lexicon

Axel 3 KHD
Axel (アクセル Akuseru?)
See Gallery


An assassin who puts his own agenda first, and everything else on the back burner. Wields fire.

Weapon: Chakrams

Marluxia KHD
Marluxia (マールーシャ Mārūsha?)
See Gallery


In the arc of his scythe, flowers grow and all else perishes. His pretty face hides ugly motives.

Weapon: Scythe

Larxene KHD
Larxene (ラクシーヌ Rakushīnu?)
See Gallery


Wields sharp knives and a sharper tongue. Her lightning strikes as quick as her temper.

Weapon: Knives

Xion 2 KHD
Xion (シオン Shion?)
See Gallery

No entry

KHREC icon Name Journal Entry
Data-Roxas (データロクサス Dēta-Rokusasu?)
See Gallery

A boy who used cards to guide Sora in the datascape version of Castle Oblivion.

While he bears an uncanny resemblance to another boy deeply connected to Sora, it is more than coat and hood that prevent Sora from seeing.

Was this boy just a phantom, a glitch? Or does this data tie into hurtful memories that sleep within Sora’s heart?

Data Namine
Data-Naminé (データ・ナミネ Dēta Namine?)
See Gallery

A special Nobody whose counterpart is Kairi. Organization XIII exploited Naminé's unique powers to alter Sora's memory, but his true heart moved her to betray them.

For Sora's memory to be repaired, he had to enter a long sleep. During this time, Naminé found hurtful memories hiding deep in his heart. Hoping their story might come to light, she added a message to Jiminy's journal.





Type Item Locations Notes
Cards Ultima Weapon Bounty This is available only if there is a completed Sora's Story file saved on the memory card.
Lexaeus Bounty This is available only if there is a completed Reverse/Rebirth file saved on the memory card.
Star Seeker Room of Rewards, Set 2 Available in Re:Chain of Memories only.
Sleights and abilities Raging Storm Bounty Available in Re:Chain of Memories only.
Super Glide Room of Rewards, Set 1 Available in Re:Chain of Memories only.


  • The need for the card system in Castle Oblivion is unknown. Although Marluxia claims that they are simply part of the castle, he also claims that the trademark memory loss was due to the castle's influence as well, when in actuality it was Naminé's doing. It is possible that Naminé used the castle itself in order to make Sora and his friends lose his memory.
  • In Kingdom Hearts 358/2 Days, members of Organization XIII often refer to Castle Oblivion as C.O. for short.
  • In the manga, the monitors through which the Organization watches Sora are "Nomura-brand", a reference to Tetsuya Nomura, the director of the Kingdom Hearts series.
  • The "Transport to Remembrance" has the same style of hallway as Castle Oblivion.
  • The stairways in the Castle Oblivion logo bear a striking resemblance to the famous Relativity sketch by M.C. Escher. In addition, most of the labyrinths within the castle appear to be heavily inspired by Escher's infinite drawings.
  • In Kingdom Hearts II, when a player enters the White Room in the Old Mansion, the symbols next to each action turns into cards. This is a reference to Castle Oblivion, as the white room bears remarkable resemblance to the halls of Castle Oblivion.



  1. Kingdom Hearts Birth by Sleep Ultimania "... Because he had gotten too close to both Sora and Ventus, his 'real self'."
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