Isabella

Isabella is a voluptuous woman with short, light brown hair and grey eyes. Her hair has three red highlights across it, and she wears a plain white mask that covers the right side of her face. Her outfit consists of a black jacket and matching jeans. The jacket has wide shoulders and a wide collar and features three leather straps on both her arms. It is also slightly open, revealing her rather large breasts and cleavage, and it is cut off at her midriff. Her jeans have a section (on her right pant leg) cut off, revealing some of her thighs and rear end, and also feature three leather straps on her calves, just below the ankles, and two extra straps on her right pant leg to keep it in place. She also wears black fighting gloves and boots to enhance her blows. She used to be a part of Riser Phenex's Peerage, but now she decided to become your loyal Rook and lover.

As for how she battles, Isabella is noted to be well-versed in a fighting style resembling boxing, using punches and kicks, in addition to flicker jabs against Issei, who was barely managing against her. In their rematch, she improved enough to where she could handle fighting against Issei donned in his Scale Mail.

For unknown reasons, Isabela wears a mask that covers the right side of her face, which has some kind of anti-magic spell added to it, remaining intact despite Isabela being hit by Issei's Dress Break twice. It's mainly to serve as an added defense against magic that could influence her mind (although she can control that at will) and oddly it even serves as kind of an homage to her favorite Gundam pilot, Trowa Barton from Gundam Wing.