(a place for the Cuarta espada and his fraccion to feel relaxed ((Ulquiorra prefers to live alone though, rarley anyone else than himself visits this place its an open area a huge one too at the size where you can easily get lost because most rooms recemble one another, its like a big mansion in the style of las noches, much like back in Ulquiorras home (when he was still alive) but only he knows it, the place is always kept clean, in the middle of this all there is a pool at the size of a small lake, however it is not water as you could make yourself belive its oddly red colored... blood?)
(there are several training areas outside of this builinding formation)