Gaea

Gaea (魔大陸), also known by the name of Desrandia (デスランディア), is the name of the faulty continent created by the singing of EXEC_METAFALICA/.. Due to the consciousness of the humans not being able to reach the wave threshold required for the creation of a proper Will with feelings that transcend those of humans', the singer or another Reyvateil close to her end up being sacrificed and her mind turns into the core of the continent, with her unhinged desires and feelings giving shape to a chaotic world of sorts. It could be considered as the physical manifestation of the Cosmosphere of the person that was sacrificed with EXEC_METAFALICA/.'s singing.

History
After Luca and Cloche tried singing EXEC_METAFALICA/. together at the top of the Bell Strike Hall, the resulting land shot off a beam of light that killed one of them (the one chosen by Croix).

Luca's Route
However, upon going to sleep with Soope as her pillow, Cloche entered a strange world and there, she got a message from Luca while they were setting her to rest at the Promise Hill, telling her she had been sublimated and become greater than when she had a body. She then told her that what she valued the most were equality and freedom, and that she would normalize the government. Cloche then noticed that Luca seemed weak, and woke up. When she tried telling the rest of the party about this, they saw that the land they had created by singing Metafalica was being attacked by the Grand Bell's airships, as well as the continent spawning monsters and attacking Metafalss. Seeing this prompted the party to go and plead with Alfman to allow them to go to the continent to try and find Luca. Alfman initally refused, but after receiving a report from Jacqli, he allowed Croix and the others to go, although he would only provide them with the trip there: the way back would be left to them.

Upon reaching the land, they were attacked by several monsters. After defeating them, Jacqli appeared and got out of her robot, revealing her face to the party for the first time. She told Croix and the others that she had no intention of helping them and that she wouldn't allow them to save Luca due to that conflicting with her goals. However, Croix didn't let this get to him and continued going deeper into the land. They found a village inhabited by Soopes and Pepens a little later, and upon noticing it also had an inn, they decided to stay there for the day. That night, Cloche had the idea of sleeping with Croix using Soope as their pillow in order to reach the world where Luca was, which they did after a initial attempt in which Croix was immediately ejected from that world upon entering. Once there, Soope tried to chase Croix away again, but Luca told him it was okay for him to be present there. Luca then explained to Cloche and Croix that she was still alive and that she was the continent they where on itself, and the plans she had for the world. This initially caused a large discussion between her and Cloche, so Croix advised to retreat for the time being. However, that discussion also revealed part of the continent, which had been just an impenetrable forest until that moment, and made the party discover that the closer Cloche got to Luca, the more the continent would open up to them. However, this required them to undergo several trials and Install the Sphere Keys they received from completing them into a replica of Luca that the continent provided to them so they could also continue advancing in the world accessed by sleeping with Soope, which they discovered was called the Infelsphere.

During their trip, they met Jacqli once again, who congratulated them on discovering that the continent was created by something called the Heart of the Land, and that it was her goal here. She once again taunted them by saying they wouldn't be able to get to the Heart before her, and ran off. However, after many trials, they finally managed to reach the center of the continent, called Imperial, and get to the Heart. However, Jacqli managed to take it away from their hands, with the final words of the Luca replica being a request to recover the heart and take it back to her empty body. Without the Heart, Gaea disappeared shortly later.

Cloche's Route
However, upon going to sleep with Soope as her pillow, Luca entered a strange world and there, she got a message from Cloche while they were setting her to rest at the Promise Hill, telling her she had been sublimated and become greater than when she had a body. She then told her that what she valued the most were law and order, and that she would normalize the government. Luca then noticed that Cloche seemed weak, and woke up. When she tried telling the rest of the party about this, they saw that the land they had created by singing Metafalica was being attacked by the Grand Bell's airships, as well as the continent spawning monsters and attacking Metafalss. Seeing this prompted the party to go and plead with Alfman to allow them to go to the continent to try and find Luca. Alfman initally refused, but after receiving a report from Jacqli, he allowed Croix and the others to go, although he would only provide them with the trip there: the way back would be left to them.

Upon reaching the land, they were attacked by several monsters. After defeating them, Jacqli appeared and got out of her robot, revealing her face to the party for the first time. She told Croix and the others that she had no intention of helping them and that she wouldn't allow them to save Cloche due to that conflicting with her goals. However, Croix didn't let this get to him and continued going deeper into the land. They found a village inhabited by Soopes and Pepens a little later, and upon noticing it also had an inn, they decided to stay there for the day. That night, Luca had the idea of sleeping with Croix using Soope as their pillow in order to reach the world where Cloche was, which they did after a initial attempt in which Croix was immediately ejected from that world upon entering. Once there, Soope tried to chase Croix away again, but Cloche told him it was okay for him to be present there. Cloche then explained to Luca and Croix that she was still alive and that she was the continent they where on itself, and the plans she had for the world. This initially caused a large discussion between her and Luca, so Croix advised to retreat for the time being. However, that discussion also revealed part of the continent, which had been just an impenetrable forest until that moment, and made the party discover that the closer Luca got to Cloche, the more the continent would open up to them. However, this required them to undergo several trials and Install the Sphere Keys into a replica of Cloche that the continent provided to them so they could also continue advancing in the world accessed by sleeping with Soope, which they discovered was called the Infelsphere.

During their trip, they met Jacqli once again, who congratulated them on discovering that the continent was created by something called the Heart of the Land, and that she was her goal here. She once again taunted them by saying they wouldn't be able to get to the Heart before her, and ran off. However, after many trials, they finally managed to reach the center of the continent, called Imperial, and got to the Heart. However, Jacqli managed to take it away from their hands, with the final words of the Cloche replica being a request to recover the heart and take it back to her empty body. Without the Heart, Gaea disappeared shortly later.

Layout
Unlike other areas, Gaea is like a mini-world map of its own, so it means that it'll take you a long time to get across it. Its main feature are the several trials you'll have to overcome in order to gain Sphere Keys, which will also allow you to proceed further into the Infelsphere, making this place unlike any other in the game. Once you clear a point in the Infelsphere, this will unlock another area in Gaea depending on the decisions you take on the Infelsphere events, so you'll have to continue repeating this cycle until the final area of this place, Imperial, is unlocked. However, make sure to be prepared, as once you have left the Verticave and accessed Gaea, you won't be able to return to the any of the areas in Metafalss until you have cleared Imperial. Additionally, keep on mind that you can repeat the Infelsphere points by using a Card of Reset that can be bought in the Gaea Village shop, so make sure to clear all of the points twice so you can unlock all of the areas in Gaea before going to Imperial. Likewise, the shop sells the Sphilial Pose, which is a key item that shows how far you are from Imperial, so make sure to buy it. And don't worry about the IPDs, as none can be found in any of the Gaea areas.

As a final note, while Gaea itself differs depending on if you picked Luca or Cloche, the areas themselves are the same: the only differences are the order in which the areas are placed, so make sure to check the map corresponding to the route you're playing to avoid getting lost.

List of Areas

 * Entrance Forest
 * Gaea Village
 * Perjury
 * Melancholia
 * Free Prison
 * Cobble Box
 * Moon Cloud
 * Amnesty
 * Star Desert
 * Love Flow
 * Tangy Alley
 * Tainted Sky
 * Imperial