Elena
アリーナ
Elena is the lead female character of TO - Symbiotic Planet.
Elena is working as an interpreter for United Eurasia Research Facility in the planet which has the possibility to become a new colony for mankind. She has been secretly meeting with Aon, a researcher from the US-Euro Research Facility, a rival facility of her own research facility.
She is also the daughter of the Head of United Eurasia Research Facility.