Shortly after the events of Kingdom Hearts 2, Sora began acting rather strange. He began wearing more clothing to cover his skin, even in the summer. He also became a bit darker and more isolated from everyone else. Kairi tries to figure out what is happening to Sora... what will happen when she learns that he is turning into a Heartless due to his being exposed to the Dark Realm? How will everyone else react, and will he fight his darker side or accept it?

(Warning: will diverge at least somewhat from the original KH plot. The change could be anywhere from a few details being tweaked to me taking the entire Kingdom Hearts series plot and warping and twisting it nearly beyond recognition.)