Phaeton Victim #4

Rene She was a scholar in the city of Arcadia, researching fire crystals. However, Arcadia was conquered by Phaeton. During the attack, she was made a test subject for the still-unstable fire crystal experiments. Prolonged exposure to the strain eventually caused her mind to shatter... She's quite petite and adorable, but I wonder how old she actually is... Given her title as a scholar and her involvement in research, one might assume she's in her late teens or early twenties at the youngest? Did the strain from the fire crystals also affect her physical age in any way? *By the way, the hero Jessie and the expert Agnes are also from Arcadia.