Kingdom Hearts: Rewind

What is Sora, former Keyblade master to do, when in a last act of defiance to Xehanort throws a meteor into his face. Only to realize his act had thrown him into the past, to the very moment he was born. What is he to do now, especially since his childhood friend is now a girl and his knowledge of what the future would be? To do what he did best of course! Powerful Sora Small Harem