Witch Hunter Robin-Volume 6 (2002)

Loyalties will be put to the ultimate test as Zaizen begins development of a new type of ORBO that would make Hunters irrelevant. Not only that, now Zaizen's group has begun attacking the STN-J! Karasuma has vanished, and the team realises she must have been captured. Before they mount a rescue operation, however, they need to gather more information.

Back at the STN-J, Father Juliano is waiting for Robin. He tells her everything he knows, and gives her the final key she needs to solve the puzzle of her identity.