She doesn't like fighting but has a responsibility to keep elf's wood safe and will do that at any cost. Befriending the fairies of Wind, Fire and Lightning, Arien has learned to control the elements. Typically labeled as a "Special Character", Arien exists in the storyline only once, in episode 7-2. She comes to your aid if you solo the mission. She comes in parties of 2 or 3 but not all 4.