Jennifer's parents died when she and her sister were young. Jennifer ended up raising her sister, but Jennifer didn't accept her when she came out to her as a lesbian. They both went their separate ways; Jennifer joined the army, and her sister left without a trace. Years later, Jennifer looked for her sister as she knew she did her wrong. To her dismay, Jennifer found out that her sister had died without giving her a chance to ask for forgiveness.
Jennifer decided to use the skills she gained in the military to offer free protection for vulnerable LGBTQ and subsequently met Nami. Together, they established a secret organization, the HRA (Human Rights Army), utilizing Nami's technology and Jennifer's military expertise.
Jennifer doesn't need superpowers to be a hero. Her heart and memory of her sister is all she needs.