Injustice 2 Storyline ()

"This princess fights her own battles."
Storyline of Starfire
As the next Queen of Tamaran, Princess Koriand’r found herself the victim of her fratricidal sister's vengeful plot that resulted in their planet being conquered. Now a royal exile on Earth, Koriand’r uses her ability to absorb and convert ultraviolet energy as Starfire.
Starfire is Nightwing's girlfriend