The Way of Friendship

(Part 1 of "One Change - A KH 'What if'?")

We all know the story of Birth by Sleep. The old classic tale. Ventus was split in half in an attempt to create an all powerful blade because he refused to use his inner darkness, Terra was possessed, Aqua left to roam the forbidden lands of the Realm of Darkness, and Ventus was cast into a deep sleep after his heart was supposedly destoryed from his skirmish with Vanitas.
But what if that never happened? What if Ventus actually used his darkness to create the x-blade? What would happen then?

Welcome to the Destiny Islands, where our story starts to begin, nearly fourteen years after our prologue with Ventus. Sora, Riku, and Kairi, a trio of the bestest of friends, are planning on building a raft to get out and see other worlds. But not everything is at rest. Sora's been getting strange dreams about a place with platforms of stained glass and ominous voices, and though he isn't particularly scared by these dreams... it's still weird. Meanwhile, Kairi, our favorite Princess of Heart, is having some issues, seeing as she is also experiencing dreams like the ones Sora has been, but hers is vastly different from his. Not to mention, the ever growing rivalry between Riku and Sora.

But when their home is suddenly plunged into darkness, and Sora and Kairi are thrown into a new world entirely... questions start to arise. Where is Riku, and why isn't he here with them? Why does Kairi have a magical weapon, and why is she the only one to wield it? Why doesn't Sora have one?