Um...Kurou's origins? I'm sorry to break it to you, but, uh...you've probably already seen the fanart of Waka holding him affectionately on Pixiv. Don't ask me about the pink cherry-blossom wings, though. It's weird, but ooking at the Japanese fandom sometimes yields more information than the gaming sites scrambling for ROMs and patches: trolling through fanart sites proved to me that the Shyamalan-esque twist in TRC involving CCS!Sakura and Tsubasa's parentage was "true" (at least, until CLAMP themselves told us it wasn't true).