The main heroine ofWild Arms XFand the younger sister ofFelius Arwin, who is drawn into the conflict of the Elesius Kingdom for two reasons; to pursue a cruel mercenary namedRupert Dandridgewho killed her mother Melissa Arwin, as well as her uncanny resemblance to the missing princessAlexia Lynn Elesius. Clarissa agrees to impersonate as Alexia so the people don't lose hope. Even though they look nearly identical, Clarissa and Alexia are NOT twin sisters, so the 'twins' tag shouldn't be used. To not confuse the two, Clarissa is the girl wearing blue clothes and wields a gun.