Arine Leoptos was an asari operative in the Livis Company. In 2181 CE, she and fellow operatives Mirole T'Shar and Thedala Visin accompanied Cmdr. Emmanuelle Sharon to the city of Nairida to locate their fellow operative, Siani Dantius (who, Arine later learned, was actually the heiress Siani T'Nair), who had fallen out of contact with her group after reaching the city. After they met up with T'Nair, Leoptos, Visin, and T'Shar took up defensive positions to try and clear the way so that Sharon could escort Dantius back to the Livis camp. However, the three operatives were ambushed by the batarians, and were tortured and killed.