Reverse Side of the World

The is the layer of the World that retains the laws of the Age of Gods, housing surviving Phantasmal Species instead of people.
Also known as the , or the ,Fate/Grand Order: Epic of Remnant - SE.RA.PH. - Deep-Sea Cyber-Nirvana - Finale it is the place where the soul of the World is kept.
The Reverse Side of the World is a legendary, otherworldly paradise that cannot be reached by normal ways, spoken of in many cultures around the world as a land of immortality. It has had many names throughout history, including Utopia, the , , and .Fate/Grand Order: Cosmos in the Lostbelt - Avalon le Fae: Fae Round Table Domain - Prologue
==Characteristics==
The world where Humans currently live employing the laws of physics is like a fabric that thinly extends across the surface of the planet, and underneath this fabric exists the Reverse Side of the World, where supernatural beings have retreated to after the Age of Gods ended. Finally, beneath that fabric exists the planet known as "Earth". In other words, the Earth is the bottom layer of the planet, and it is covered by the “Reverse Side of the World” — the place where the laws of the "World" as it once was reigns, and covering that is the "Present World" where humans of the Age of Man live. It is located 2700 kilometers below the surface.Fate/Grand Order: Cosmos in the Lostbelt - Avalon le Fae: Fae Round Table Domain - Section 27: Epoch of Creation
It is the "place of the mind", said to be sure to exist once the planet is being treated like a single lifeform. Da Vinci compares it to being the Reality Marble of the planet itself. That said, as the planet is big, it has more that one "mental characteristic", such as "a mind closely adjoined to human society" or "a mind that takes issue with human society". Avalon would be one of such characteristic, a world closer to nature and which doesn't concern itself with human society. Although Fairies, Elementals and Divine Spirits can come from both the Inner Sea and other circumstances, the Archetype is the only type of Elemental that can only come from the Inner Sea.Fate/Grand Order: Cosmos in the Lostbelt - Nahui Mictlan: Golden Sea of Trees Travelogue - Section 14: Metztitlán, the Doomsday Observatory
Rhon.png|Rhongomyniad, one of the planet's "anchors."
Rhongomyniad is one of the "anchors" that fasten the planet together to ensure that the world of humans on the outermost layer of the world can't be destroyed by those on the Reverse Side who wish to reenact the Age of Gods. The Holy Spear that King Arthur holds is nothing more than a shadow of the main body: a tower that fastens together the skin of the world. It exists to be the planet's anchor and to ensure the World's stability.Garden of Avalon - Chapter 02: The light of the stars, p.040-052Fate/Grand Order - Profile of Artoria Pendragon (Lancer Alter), translated by Master of Chaos at Beast's Lair
The highest class of Fairies, known as Great Fathers or Great Mothers, are born in the Reverse Side of the World and can be thought of as Divided Spirits of the planet's soul. They're about the same scope as an anthropomorphized nature divinity, but unlike those Gods, they are not clothed in human rules. Great Fathers and Mothers are pure transcendent existences. Morgan le Fay/Vivian is an example of a Great Mother Fairy.Fate/Grand Order - Fae Round Table Domain: Avalon le Fay - Oberon's fairy explanation, translated by You Excalibur was also created here.
The Spiritual Tomb of Albion beneath the Clock Tower in London is a massive underground labyrinth that gets near to the Reverse Side, though does not quite reach it as the Dragon that was digging the tomb died before it could finish.Lord El-Melloi II's Case Files Volume 8: case. Grand Roll (Upper) - Chapter 2 Part 4
==Avalon==
:For the specific Noble Phantasm, see Avalon.
LEAvalon.jpg|The land of Avalon as shown in Last Episode of Fate/stay night.
Avalon bg FGO.png|Avalon as seen in Fate/Grand Order.
Garden of Avalon map.jpg|Map of Avalon as seen in Fate/Grand Order, with Merlin's tower in the center.
 is the paradise in the Arthurian legends, existing in the Reverse Side of the World at the same coordinates as Britain. It is a small world that was called the and the in mythology, the utopia was thought to be derived from the island that produced the "Apple of Immortality" in Greek mythology. 
King Arthur is said to dwell in Avalon and will eventually return to lead England to true glory.
It is a Utopia that may not be granted to Beasts which possess wisdom, one that may never be reached. It is a world cut off from the constant decay and destruction of the surface of the planet and, although it is nestled in human history, has no connection to other lands at all. Daytime is filled with spring’s sunshine and the smell of summer; night is wrapped in the autumn air and stars of winter. It is where flowers of all colours bloom on gently sloping plains. A forest can be clearly seen in the far distance, enveloped by the overlooking sky; the view is evenly divided between the sky and the earth. There is no sign of human civilization in the lands. On earth there are countless flowers and bugs; in the forest there is water and green, and ethereally beautiful Fairies lurk in the pond. The paradise people imagine is only an imitation of this place. Here, in this un-trodden place, the bounds of a serve as the ends of the island. Though the island has no end, it seems to change like any other land. Further into the island the land turns barren, similar to Britain. It is where Fairies got up and went to after the Age of Gods ended.
According to Merlin, the density of Magical Energy in Avalon is too strong for a human to handle. He thought it should not be called a paradise, but it could be better utilized as a weapon instead. He compares the place to a vacuum, simply breathing in it is enough to end up dead. In one breath a human of the current age would burst from inside out.Garden of Avalon - Prologue: At the Garden
Merlin came to Avalon near the end of King Arthur's reign while running from an angry Vivian, only to be imprisoned in a tower by her. Unable to die until the end of the world, Merlin remains trapped in his tower even into the 21st century. Due to unknown events, the Merlin of the Fate/Prototype universe is no longer confined in the tower of Avalon.Fate/Grand Order Arcade exclusive character profiles, translated by ComunCoutinho on Reddit
The in Avalon is the forge where the Sub-Bells of the Beginning forged Excalibur.
==Role==
===Fate/stay night===
Once Artoria Pendragon terminated her contract with the World by destroying the Holy Grail by her own will, she goes to Avalon. In the Last Episode, Shirou Emiya was able to reach Avalon and reunite with Artoria. 
===Fate/Apocrypha===
Sieg in his Fafnir Dragon form migrates the Greater Grail to the Reverse Side of the World. In the Reverse Side of the World, the Holy Grail cannot activate Amakusa Shirou Tokisada's wish of "Salvation of mankind through the Third Magic" simply because no humans exist there.
Reaching the Reverse Side of the World as a Heroic Spirit is not impossible because Heroic Spirits have already become inhuman the moment they died; however, the probability is incredibly close to zero. In order to reach the Reverse Side to reunite with Sieg, Jeanne d’Arc essentially tried an infinite number of times from the Throne of Heroes, which was removed from the time axis. It took her a long, long time, but she eventually succeeded.
===Garden of Avalon===
While Merlin was imprisoned within the Garden of Avalon, he went through the drafts and sketches he had made in life and started telling Cath Palug the events of the life of King Arthur.Garden of Avalon - Chapter 00: At the Garden, p.013
Upon witnessing Arthur's final moments, Merlin releases Cath Palug from the Garden of Avalon, insisting that he seek out "that which is beautiful."Garden of Avalon - Chapter 06: In the Flower Garden
 
===Fate/Grand Order===
====Camelot: Divine Realm of the Round Table====
Bedivere reached Avalon after wandering for centuries unable to die, where he met Merlin and was sent to the Camelot Singularity.Fate/Grand Order - Camelot: The Sacred Round Table Realm - Section 17: Replica
====Apocrypha: Inheritance of Glory====
Sieg as Fafnir, still waiting for his reunion with Jeanne, calls Ritsuka Fujimaru's consciousness into the Reverse Side of the World to help him deal with a problem occurring in the Greater Grail.
====Avalon le Fae: Fae Round Table Domain====
Merlin contacts Fujimaru from his prison in Avalon and tells them of a prophecy concerning the English Lostbelt, then says that he will be watching from within his tower until they can meet again after the battle.
Later, on the advice of Merlin, Artoria and her companions travel to Avalon via the Spiritual Tomb of Albion in order to forge Excalibur. Merlin refers to this Avalon as a "shadow" that the Lostbelt has taken in, unaffected by the bleaching of the world.
===Fate/Labyrinth===
Manaka Sajyou sees Sieg as Fafnir waiting for Jeanne when she sends her consciousness through the Reverse Side of the World.Fate/Labyrinth - Act 1
===Fate/Prototype===
Arthur Pendragon reached Avalon at some point after the Second Grail War, but was informed by Merlin that he could not enter it until Beast VI was destroyed for good.
===Lord El-Melloi II Case Files===
Kurou Adashino fell from the Spiritual Tomb of Albion into the world of Fairies when he was young, and while there had his heart stolen by Fairies. When he found an exit he discovered that he had gone back in time as fairyland was outside of time and space.Lord El-Melloi II's Case Files Volume 10: case. Grand Roll (Lower) - Chapter 5 Part 4
The efforts of Trevor Pelham Codrington to create artificial Black Dogs eventually led to a gate to the fairy realm opening on his estate as the dogs called for more of their kind to form the Wild Hunt. The gate closed soon after, when Wills Pelham Codrington passed through to be with his love Faye.Lord El-Melloi II Case Files: Grace Note - Episode 5: "The Farthest Spear and the Fairy Eyes"
Gray's hometown Blackmore Cemetery has a secret underground temple which is designed as a replica of Avalon. It is here where the ritual to turn Gray into Artoria was planned to take place.Lord El-Melloi II Case Files Volume 7: case. Atlas Contract (Lower) - Chapter 3 Part 5
==References==
it:Retro del mondo
Category:Locations
Category:Cosmology
Category:Worlds