Reze is a slim and short girl, she has emerald green and almond shaped eyes, having a feline beauty, she tends to act kind, tending to care about others and even make jokes to annoy those around her, being a gentle person. And funny, but she's secretly a spy for the Soviet Union who went to Japan to steal the Chainsaw Man's heart. She is also the the bomb devil so her powers are dangerous, .she is seen wearing a choker in order to conceal the grenade pin in her neck,which she uses to transform.