The daughter of Superman’s grandson Knightwing , and sister to Supergirl Red, Supergirl Blue has all the powers of a Kryptonian but at 1/8th the strength. When she began to age slower she exposed herself to gold kryptonite to age at a normal rate so the man she loved would no longer see her as a child. When a kryptonite bomb was detonated killing Knightwing and Supergirl Red, Supergirl Blue was not harmed as she was human. Later Batman gave an adult Lara a serum restoring her powers and she renamed herself Superwoman.
