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, and innocent; 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.