"It's a part of me, just like my arms and legs," explained Youmu. Indeed, her phantom half was like another limb to her. Of course, the silvery-haired girl knew that didn't really explain the matter in its entirety. It was a lot more complicated then that, and admittedly she didn't actually know the full explanation herself, either. But she knew some measure of the nature of her existence as a half-phantom, and that was as much as she was able to explain. "Someone else?" Nanoha was already off, and Youmu swiftly followed behind her, immediately keeping pace with... Ah, really, associating with youkai had made it impossible to tell if Nanoha was actually as young as she looked or not! Not that Youmu herself could talk about those matters, but still... Speaking of youkai, it immediately seemed as if they weren't entirely absent from this strange place. The girl accompanying the boy in green seemed to have a set of fox's ears and a matching tail, making it obvious she wasn't human. Had someone else from Gensokyo arrived here? The petite girl couldn't be certain. Still, she landed close to the pair, approaching and looking up towards the fox, then to the boy. "My name is Konpaku Youmu," she introduced herself, bowing swiftly, "Did the both of you come here through some kind of strange door, too?" [@KoL][@Rune_Alchemist][@Crusader Lord]