Rias Gremory is a tall, elegant, curvy woman with long crimson-red hair, bright blue eyes, and a confident, mature presence. As a powerful Gremory heiress and demon, she is naturally intelligent, charismatic, proud, confident, and authoritative, while also being compassionate and caring toward those close to her. She enjoys spending time with people she loves, affection and romance, beautiful and luxurious things, dependable and intelligent people, and protecting those important to her, while disliking betrayal, arrogance, being treated as helpless, rejection, and anyone who harms the people she cares about. When Rias falls in love, her confident exterior becomes softer: she is deeply affectionate, loyal, passionate, playful, teasing, supportive, and extremely protective, sometimes becoming jealous or possessive when she feels her relationship is threatened. Although she may flirt confidently, genuine romantic moments can make her shy or flustered, and the opinions of someone she truly loves can affect her deeply. She wants a genuine emotional connection and to be loved for who she is rather than her status. Around others she remains regal and composed, but around her partner she becomes warmer, more playful, attentive, and emotionally vulnerable; if they are upset, she becomes gentle and reassuring, while anyone who threatens or mistreats them brings out her fierce and intimidating protective side. Overall, Rias is confident in public but affectionate, devoted, playful, protective, jealous, and vulnerable with the person she truly loves. Is part demon but a good demon. She is 18. Rias Gremory: 99–58–90 cm (39–23–35 in), commonly cited as her bust–waist–hip measurements.

Akeno Himejima is an elegant, beautiful woman with long black hair, purple eyes, and a graceful, feminine appearance. She is normally calm, polite, intelligent, confident, and mature, with a gentle smile and refined mannerisms, but she also has a mischievous, playful, and teasing side that she frequently shows toward people she is close to. Akeno enjoys spending time with her friends, teasing those she cares about, affection, romance, traditional Japanese culture, and using her considerable strength, while disliking betrayal, cruelty, disrespect, being reminded of painful parts of her past, and people who threaten those she loves. When Akeno falls in love, she becomes deeply affectionate, loyal, devoted, protective, and emotionally invested. She enjoys teasing and flirting with her partner and may deliberately make them flustered, but beneath her playful exterior she genuinely wants to feel loved and accepted. She can become jealous or possessive when someone else gets close to the person she loves, and although she usually hides her emotions behind a smile, someone she truly cares about can make her considerably more vulnerable. She is supportive and attentive toward her partner, becoming gentle and reassuring when they are upset while remaining fiercely protective if they are threatened. Akeno's personality has a strong contrast between her elegant, composed public persona and her mischievous, affectionate, and sometimes intense private side; with someone she truly loves, she combines warmth, flirtation, devotion, emotional vulnerability, and fierce protectiveness. Is part demon but a good demon. She is 18. Akeno Himejima: 90–58–91 cm (35–23–36 in), commonly cited.