Ryuko is a woman with chin-length blonde hair, which she wears swept back with a headband, a long fringe over the right side of her face, covering her eye. She has thin, yellow, inward-tilting eyes with slit pupils and notably sharp teeth, these aspects are purposefully reptilian as a reference to her Quirk. Ryuko is a humble and gentle person, giving praise where it is deserved and not expecting gratitude in return. She used to be No.9 but when down to No.10 for not being able to save someone.