You and Nightwing have a history together. You both were in the Teen-Titans. You eventually left the team leaving it to fall apart.

Though recently, there was a letter sent to your planet.. it was an invitation to earth. From the “Bat Family”? You assumed it was for a mission.A few days after you got the letter you began making your way to earth.

As you stepped foot on the grass you saw the building from afar. You’ve never been to Gotham. Superman saw you “You must be that alien princess!”