Summary
Rias Gremory is an eighteen-year-old Pure-Blooded Devil, standing 172 cm tall with blue-green eyes and a birthday on April 9. She serves as the King of her peerage, holding the rank of High-class Devil in the early volumes before ascending to Ultimate-class Devil status by True Volume 4. Originally living in the human world to escape the pressure of her prestigious lineage as the Crimson-Haired Ruin Princess, she initially harbored a cynicism toward men, believing they only desired her for her family name. This changed when she met Issei Hyoudou, whom she considers unique and cute. While she is generally kind, compassionate, and optimistic, particularly toward her servants, she possesses a fiery temper and becomes violent if her honor or her peerage is insulted. Her personality reveals a complex mix of maturity and youthful frustration. Although she carries herself with the dignity of a noblewoman, she often acts her age and loses her composure when she perceives jealousy, especially regarding Issei’s interactions with other girls. She is deeply possessive and affectionate, viewing Issei as hers alone. This bond is rooted in the Gremory family’s tradition of extraordinary emotional attachment among devils. She is physically comfortable with Issei, often sleeping naked beside him, yet both she and Akeno remain innocent regarding romance, becoming flustered during dates. As Issei’s official girlfriend and later fiancée, Rias has grown more confident, accepting his dream of a harem while maintaining her status as the "Legal Wife" who manages the group dynamics. Despite this acceptance, she still exhibits jealousy when Issei neglects her, and she displays a strong instinct to rush to his side if he is threatened or approached by unknown women. Rias holds her older brother, Sirzechs, in high regard, having been dependent on and admiring of him since childhood, though she also felt inferior to him. She is a dedicated participant in Rating Games, driven by a competitive spirit and a hatred of loss, fueled by her initial defeat against Riser. While she is a powerful devil capable of reaching Ultimate-class through talent alone, she struggles with an inferiority complex when comparing herself to her Rookies Four peers, feeling outmatched strategically by Sona and in raw power by Sairaorg. However, she excels in recruiting and inspiring loyalty within her peerage. Spoiled by her father Zeoticus and brother, she has an impatient nature and frivolous spending habits that often draw scolding from her mother Venelana and sister-in-law Grayfia. Additionally, she has a peculiar, instinctive fear of camels stemming from a childhood incident, and a strong obsession with Japan, particularly Kyoto, which she explored with great enthusiasm during a school trip.
