The Angel of Chastity. Gabriel is the self-proclaimed disciplinarian of the group, and she's always cracking down on humans and angels whom she thinks have transgressed. Her lectures on chastity are not terribly convincing because of the amount of exposed skin that she flaunts, but her outfit is the uniform for her job, so there's not much she can do. Gabriel is overflowing with misplaced confidence and positivity.

(Source: Tokyo Zerostar)