Vice is a violent person, taking great pleasure in killing others and seemingly immune to their pain. She holds a grudge against Saisyu Kusanagi due to his resistance taking her a great deal of unexpected effort to be able to brainwash him in the first place, not to mention being a natural enemy of theirs, and it's due of the nature of this grudge that she despises old men in general. As part of the Hakkesshu, she maintains a regard of protection of nature and hates humanity.