Julia F. Rainheart

The Captain of Spica Platoon. After graduating, she signed up for the SDF and was assigned to the Acrux Platoon. She was promoted to the Captain of Spica Platoon for her "analytical ability and high intelligence." She is bright, but also very stubborn and inflexible. However, she is very caring and has a high sense of responsibility. Her crew members trust her and see her as more of an older sister than a superior.

Work-wise, she doesn't get along very well with Murase, the Captain of Vega Platoon, because of her stubbornness to relinquish command and his tendency to act before he thinks.

(Source: Wikipedia)