Ages ago, long before the time of the current generation of Keyblade Masters and Wielders, and sometime before the War of χ / The Keyblade Wars, there was once a time that the worlds weren’t so distant. No, in this time, the worlds had only just split apart, breaking away from the fading remains of a connected world. In this time, one could simply wander the borders of their world, and end up in another world. Measures had been taken to map these faint connections that led to the creation of a network between the worlds. Though, those were required to be changed every so often, the borders changing without warning and sometimes closing off a world for a period of time.
In this time and age, individuals had begun to be effected by this change; newborns to elderly and every age in between were blessed with the magical properties of these magical borders, imbuing them with neutral, mystical energy, neither light nor dark. Not yet. For some reason that had no valid explanation, this energy could manifest into the form of various objects, but most commonly keys. The first ones to receive these odd keys, through experimentation, had learned that these keys could “lock” these borders in place, for a very long time as well, or shut the borders completely, isolating the worlds.
These keys, well, they could also be used as weapons as well, the odd objects possessing the same shape as blades, most only lacking sharp edges, though. After more studying, it was soon to be discovered that these… key-blades—as they were jokingly referred as by drunkards at taverns—could be used by the owner of each to channel their neutral energy into the form of the elements, and the many more elements that were made by mixing these elements. Magic, you could say.
All was well for a few decades, no wars, no famine, no destruction. But soon, some of these “Key-blade Knights” or “Linkers” as they were called, grew arrogant with their new powers, and abused them, tyrants taking over their respective world or others, hurting the weak, and various other negative activities. These negative activities resulted in their neutral energies to become corrupt and dark. They would become a general nuisance to the law and governments, shutting off the links between the worlds and evading arrest. They were the first ones to embrace the taint of Darkness. But, not all that follow the Dark path are bad, per say, though it would state that they have been living a rather negative lifestyle.
Others, they were the more normal bunch. They would rather to prefer to use their powers for common uses, or simply do not prefer to use their powers for positive or negative gains. They would be the ones who prefer the Neutral path. These men, women, or whatever these goofy beings identify themselves as, tend to either not be involved with the public and could just be the average person who was gifted, and use their powers for common trades in business, join the police, or is just the “common man” going about their normal life. This isn’t to say that these people are neither bad nor good; they could very well be one or the other, or even both.
And then there the positive bunch. If you could take a guess, these people could be compared to Knights in Shining armor, like the ones who would show up in fairytales. They would rather use their powers to help, or try to help people, the environment and all of that shiz. Generally, those falling under the Light path tend to be more heroic or helpful, pursuing careers as healers, join the legion that was formed to ensure that the links between the worlds are secure, and to reconnect the links severed by those with negative motives. They also, like everyone else regardless of their alignment, fight off any of the strange, unnamed beings that have always been appearing since the worlds split, that are a source of mayhem and corruption across all of the world, making sure that no one will be harmed. None of this, again, is to say that every person who follows the Light path are good, they’ve just been living a more positive lifestyle. Hell, a Darkness-aligned person could be a saint and the kindest and sweetest person ever where a Light-aligned person could be an absolute asshole.
((Also, if you would like to add on to this, or change some things, I’m open for suggestions so just ask away! ^u^))