Kara Zor-El (Earth-9107)

The cousin of Kal-El, she was meant to journey with him to protect him. However, she was left drifting in space, in a frozen slumber. Eventually, her ship did make it to the Earth, where her baby cousin was now older than her and now a hero called Superman. She went on to join him as Supergirl, before deciding to become Power Girl to not be seen constantly in his shadow, which he approves. She gets some flak for her costume, but she just says that she's "Female, healthy, and strong! So no apologies!"