A product of EMMA merging the Metaverse with the real world. After Kuon Ichinose promises to atone for her misdeeds by assisting the party to stop EMMA with their collaborated persuasion and the group surfaces back to the real world from the Jail of the Abyss, more and more people begin to flock near Tokyo Tower in a crazed and soulless fashion, their eyes lacking any energy in them (much like how the King's followers are described as). A short while later, all of Tokyo goes into a blackout and the only beacon of light sprouts from the Tokyo Tower, overlaying it with a tree-like structure.
While the structure's full body was not seen, it consists of a series of tree roots eroding and breaking through a deserted Tokyo Tower. After this dungeon was unlocked, for the rest of the game, the party will be in their Metaverse outfits, Morgana will assume his Metaverse form and Sophia will appear physically, even when inside the camping van. The background music will also be overridden by the dungeon's BGM, unless when entering Sophia's Shop, the Velvet Room or another Jail. Time will also stop advancing until the final boss encounter was defeated, and the only places where the party may visit is the Tree itself and other Jails.
Once the party reaches the top of the tree, they encounter the Holy Torah/awakened EMMA, who was reluctant to fight. Instead, she tells the party to hear the voice of the suffering masses and traps them in an infinite path of fog. The only way to escape this screen is to repeatedly try to walk sideways-backwards until the scene fades to white; walking alongside the path will cause the protagonist to get stuck in an infinite loop. Once the party escapes, the Torah has vanished, leaving a pink desire fog. Unlike previous Kings, the desires are considered granted and do not belong to EMMA herself. While a calling card has to be sent to EMMA, she was observing all of the party's movements and she was taught how a Calling Card functions, indicating that the cards must be sent in another way. Ann formulates a plan where the calling cards are not sent to her, but sent to the public via her servers. The Phantom Thieves can now finally access the gate to EMMA's server room and initiate a hacking battle so they can gain access to it.
Once in the room (devoid of the scenery distortions compared to the outside area), Futaba has trouble hacking into the EMMA servers because of its restorative programming, only for Ichinose to come in herself and lend Futaba a hand. According to Ichinose, she was able to intrude without issues because the Shadows ignore her presence for being EMMA's accomplice. With cooperation from the two computer geniuses, EMMA's interface was hijacked with a Calling Card, with the crowd near Tokyo Tower affected. The desire gems take form and the party ascends above to confront the mechanical abomination.
Once within the Elevator, Lavenza summons the protagonist into the Velvet Room and explains the upcoming opponent being a false god that people blindly put their trust in and tells him that just like a few times before, similar events have happened in the past, and will inevitably happen in the future no matter what. When the protagonist resolves to defeat the false deity to save the public once again, his inmate outfit becomes his Phantom Thief clothing and the cell's door break. Lavenza bids the protagonist farewell, and the elevator arrives to the top floor where the final confrontation commences.
Once arriving to the top area once again, the Torah extends a series of arms, revealing a white, avian and godly creature within it. The creature introduces itself as the Demiurge and claims that humanity's answer to happiness is for it to think and make decisions for them. Upon being rebuked, it attacks them. It proves to be a formidable foe for the party, and it continues to convince the party to accept its ideology, to no avail. Realizing it must exterminate them, the Demiurge assumes its second form by breaking off its mask and releasing the energy contained within the cage, turning it into a hideous-looking, insectoid creature in white, but also with red tendons sticking out from it and lacking a head, with a pair of white wings on top of it instead. This form auto regenerates itself, although after two attempts, Futaba realizes that there are ten energy sources behind it that are healing it, prompting the party to split into three groups to destroy the energy sources and the Demiurge herself. The protagonist must confront the Demiurge and cannot be assigned to any other party. The energy sources come in 2 groups of 5 and are named after the different circles of the Sefirot, each with their own properties. Once all 2 groups are defeated and the Demiurge destroyed, the party unleashes a 10-man All-Out Attack to finish the mechanical monstrosity off, with it lamenting being unable to guide humanity at the end. (Secretly, she comments that Sophia's decision was right.)
With everything reverting to normal, the destruction of Tokyo Tower was reverted as if it never happened and the crowd nearby vanishes, being replaced by normal passerby. With the threat removed, the party heads back to Leblanc for celebrations.
Upon reloading the cleared save file after the credits, the player will return here (in a state prior to defeating the final boss encounter) and several new quests will be unlocked.
- False God Demiurge
- Metatron (Clear the game; required to be defeated in order to unlock its fusion)
- Archangel (Calamity Shadow)
- Upon entering this Jail, Morgana would tell the party that this reminds him of a "situation half a year ago" where "the Metaverse has corroded with the real world," or 7 months before, implying that this game is actually a sequel of Persona 5 Royal, as a similar situation occurred in January of the same year, with Eden being the motif of both.
- If the player has unlocked this Jail, the party will be in their Metaverse outfits/forms within the camping van, and the default overworld BGM will become the same theme as the dungeon itself. The party members inside the van will also appear to have a tired look on them.
- Alongside the related Jail of the Abyss, the unlock date of this Jail falls in the same date as Sophia's birthday.
- This makes it the second time where a dungeon's final exploration date matches the birthday of a relative close to its creator and kick-started their distortions. In this case, the instigator is Kuon Ichinose and the dungeon's unlock date is Sophia's birthday. The first time this happened was in Maruki's Palace (Whose deadline falls on the birthday of its creator's ex-fiancee.)
- This Jail is based on the Sefirot, also commonly known as the Tree of Life in Kabbalistic lore, which allows mortals to ascend and become to god. (As opposed to traditional christian beliefs that no mortal may become equal to or surpass god) This ties to how the EMMA-Demiurge was no "God" (or Shadow) unlike the Holy Grail named after the same mythical entity, but an AI who has ascended into godhood.
- It is also based on the Tree of the knowledge of good and evil (also commonly known as the "Tree of Wisdom"), a tree from the Garden of Eden that god told Adam and Eve not to eat the fruits of, only for the serpent to tempt them to eat the fruit, making God drive the two out of Eden. In the Gnostic Christianity where Sophia was present, the serpent was considered a positive figure to guide humanity out of ignorance, symbolizing the Phantom Thieves guiding humanity out of the Demiurge's paradise thrice.