*Read Authors Comments first, please*
Thousands and thousands of years ago, when the Raposa world was nothing but an empty space, a small rift appeared, that led to a strange world in the unknown. A being, well, not as much of a being as it is more of a "presence" was transferred into the world. The being then created a book, and labeled itself as "The Creator" inside. This book had the power to create and manage life, matter, and pretty much everything else.
From here, the Creator began to draw into the Book, creating air, water, flora, and overall life. From these creations spawned the Raposa, creatures who had the potential to become organized and more advanced than the other creations that The Creator had made. It was here the book was actually given to the Raposa by the Creator to take the upmost responsibility for. Thee book was then given a name by none other than the first Raposa that was created. Through the newly named Book of Life, the Raposa were able to survive and prosper through the generations in peace.
However, thousands of years after the creation of the Book of Life, the rift opened again, this time sending two consciences into the Raposa world, one from a boy who had been send into a coma, and another from a girl who would like nothing more than to see her brother healthy. However, The Creator was able to improvise to prevent another "presence" from entering the world, and was able to give the consciences solid forms based on the images contained inside the consciences themselves. However, one of the consciences was incomplete, as it was more of a feeling than an actual conscience. The Creator instead gave it a body in the image of one of the creations that was already recorded into The Book of Life, which ended up being a Raposa.
It was around this time that a Raposa named Wilfre came along, who began to question why the Raposa couldn't create things in the book themselves. He was able to sneak into the Creation Hall, and steal the Book. In a self-defense, The Book of Life's pages released an inky, black substance, or Shadow Goo, that sticks to beings that possess an evil aura and uses waves of energy to immobilize whatever it is stuck to, to eventually be erased by the Creator after the Book of Life has been returned. However, Wilfre was able to channel the waves and take advantage of the energy output, giving him the ability to fly, shape shift, and use the substance to generate objects and other forms of life.
Because the Book of Life was in pieces and the goo failed to work, the entire Raposa race was put on the spot, since they were charged with full responsibility of the book. It was not until several years later that the Mayor's daughter, Mari, was able to win back the Creator's forgiveness. With the power of the remaining Book of Life, the Creator was able to create a being that possessed astonishing powers beyond those of the strongest creature the Creator has made so far. The being was able to defeat Wilfre, and return the book as it once was. It was here that the Hero discovered the two consciences, named Mike and Heather, who had been taken captive by Wilfre along with the other Village Raposa.
The left side of Heather's face is covered in dry shadow goo because of a "glitch" during the transformation via the Book of Life. Wilfre realized this during his moments of power and made a sort of "backup" version of himself that resided in the goo on the left side of her face that would become active when his real self was defeated or destroyed. Though the mind of Heather, Wilfre discovered where Heather and Mike originally came from and that if the Raposa world stays as it is, Mike will eventually wake up from his coma, and both consciences would be sent back to their own world, eliminating his only vessel that could keep him alive. So he stole away the color using an ancient scepter to trap the two consciences in the Raposa world, and lied to the Raposa that if the color was brought back, their world would cease to exist.
But in a stunning turn of events, it turned out that the Raposa were actually WILLING to sacrifice themselves to save Mike. Wilfre tried to persuade them to rethink their decision, but is ultimately defeated again by the Hero. The Raposa continue to color the rest of the world, and were able to send Mike and Heather back home in a flash of light.
But having Mike wake up from his coma forced another rift to open, and this time, it lead back to where the Creator originated from as well. As Mike and Heather's conscience returned to their world, the Creator actually returned to its own, explaining why the screen whites out at the end of the game, since the person playing the game is the Creator, in their perspective, the Raposa are the ones vanishing, but in the Raposa's point of view, it's the other way around.
Afterwards, the Raposa were surprised to find out that their world was still existent. It also turned out that the Hero and the Book of Life were still existent too, and since the Hero was "Filled with the presence of The Creator" it knew how to "use" the Book of Life and record new things into it. And since The Book of Life managed everything that had been recorded into it, the Raposa world was able to stay alive and flourish as though nothing had changed.