Terra is a half-human, half-Esper. Her mother was a human that wandered into the Esper world by accident. She met Maduin, a male Esper, and they had a child, whom they named Terra. During the Emperor's Esper hunt, Terra was captured by Gestahl. Recognizing Terra's magical power, Gestahl used a slave crown to control her, which made her a minmdless puppet. You start the game with Terra riding on a Magitek with Vicks and Wedge to capture the Esper in Narshe cave under the Emperor's order. However, an accident occured, and Terra was found alone by one of the Returners, Arvis. Arvis took the slave crown off her head, and Terra became aware of herself again. However, she could not rememeber anything about her past.

Knowing that Terra has special power, Arvis told Locke, a fellow Returner member, to take her away from Narshe. The Returners hoped that Terra would help them, because she was their only hope of fighting the Empire, as her magic is the only thing for them that can counter the Magitek of the Empire. Eventually, she recovered her memory as she finally remembers about her parents.

Terra ponders about life a lot, and what is the purpose of her very existence. When she started taking care of orphans in the World of Ruins, she refused to fight anymore because she felt that with the children is where she belongs.

Terra is the second strongest magic user in your party. Her attack stats are okay too, but I don't use her much since her 'Morph' command isn't all that useful to me =)