Haruka

Haruka is a thirteen-year old girl, and initially the only known human survivor on earth. During the final war, her parents put her in a cold sleep chamber, sacrificing themselves to help the machine obtain the necessary temperature. She slept in the machine for thirty years before being discovered by her robot family a year before the time frame the series is set in. Her thinking is very positive and she is a hardworking person. She loves all the robots and considers them her family. In the anime series, she is voiced by Yui Horie.

(Wikipedia - Kurogane Communication)