Board Thread:The Last Sovereign Discussion/@comment-31763506-20180616101559/@comment-31763506-20180619164608

Maximum is 12 Captives. 8 if you rescue Erosians in both Zirantia and Aram, 3 from the HQ battle, 1 from chatting with the succubus in the aftermath.

I dunno about the -1 from Ginasta. You could ask SL.