This is the place where Tousen conducts all his research about Gillian. It has everything a wild(after)life research station needs. Monitoring systems, cameras with 1000x zoom, huge monitors, catwalks to observe the Gillian without having to risk being eaten, lights, binoculars with night-vision for easier observation on site and racks for feeding the Gillian the best food so they would grow bigger and stronger and be generally better than all other Gillian. It is unclear what it is good for, because Gillian are too weak to be of any use in Aizen's campaign. Another mystery is how Tousen can use half of his observation equipment when he's blind.