Kobeni Higashiyama has a petite build with short black hair, often tied back with hairpins. She is usually seen wearing her Public Safety Devil Hunter uniform, which includes a suit and tie. Kobeni's character is defined by her extreme anxiety and timidity, often reacting to stressful situations with panic and tears. Despite this, she possesses surprising agility and combat prowess, making her a capable fighter when necessary. She is 20 years old.