Dark Legacy

Dark Legacy is a tool which was created and discarded by Heaven Canceler at some point in his past. It is currently being used by Aleister Crowley to preserve the Dark Matter ability of Level 5 Power User Kakine Teitoku. It allows the continual generation of Dark Matter through keeping Kakine Teitoku's brain alive. It was also used to save Mugino Shizuri's life after her fight with Hamazura Shiage in volume 15.