He spent a year sleeping, between CoM and KH II, while Naminé returned his memories to normal, after his experience in castle Oblivion, and during this time, he was reunited with Xion and Roxas. After he awakened, he set off on another journey, looking for Riku and helping return the worlds to normal. Sora, in CoM and KH II, kills almost every member of Organization XIII, all of them except Lexaeus, Vexen, Axel, Zexion, and Roxas and Xion, obviously u.u.
Nothing was ever said, but looks like he has some feelings towards Kairi, as he is always thinking about her, especially when other characters are couples, like in the Land of Dragons, with Mulan and Chang...
His name means "Sky" in japanese, relating him to Ventus again, whose name means "wind"
|His original design... I prefer the game one, this is kinda weird... but it's cool anyways|
|Sora In a doujinshi, "walking togheter"|
|Sora as he appears in the KH mangá.|