"Oh yeah." Ichigo nodded. "Outside of the Dangai, there's the precipice world, Hueco Mundo, Soul Society, and the Soul King's palace. Oh, and Hell. The precipice world is hard to get to, not a lot happens there. Hueco Mundo, that's the realm of the Hollows. If you see a tall guy with blue hair and a half of a big cat's jawbone on his right cheek? Ask him about that place. It's where he's from."