Sirius is presented to us as a Pro Hero working as a sidekick on the Oki Mariner under Captain Selkie. She is shown as a young woman with smart blue eyes, sloping inwards, and short, shoulder-length hair of a sky blue color. Due to her Quirk, Good Ear, she can hear high frequencies and quiet sounds that normal people cannot. This allows her to communicate with Selkie, even when they are at a far distance. My Hero Academia cursor pack with fanart Sirius anime cursor.
