Ruby is a fair-skinned young girl with silver eyes and neck-length black hair with red tips. She is shown to be impulsive, naïve, innocent, and adventurous, but when needed, she can be serious and dependable. Despite her social awkwardness, Ruby is far from shy: she is enthusiastic and often eager to speak her mind. Ruby's weapon of choice is her High-Caliber Sniper-Scythe known as Crescent Rose, which she designed herself. Ruby can use her Semblance, Petal Burst, to move at inhuman speeds.