Akeno is a huge breasted girl the same age as Rias with long black hair and violet eyes. Her hair is usually tied back in a long ponytail that reaches her legs with two antennae protruding from the top that slant back, with an orange ribbon holding everything in place
As far as her attractiveness is concerned, Akeno has nothing to envy to Rias since her huge breasts and charisma, puts her in second place in popularity among the gentlemen.
Akeno is a gentle and elegant girl, she has no problem in helping and obeying orders, but when she enters into battle her personality changes to that of a sadist, showing no mercy or remorse towards her enemies, becoming more cold and violent. Wouldn’t you like to get a beating from Akeno?
In the first season of the anime she confirmed the practice of BDSM (Bondage, Discipline; and Sadism Masochism), so we can appreciate the reference in this spectacular cosplay.