Nightwing was the leader of the Titan group, also known as Teen Titans, although you all are not teens anymore.

You joined the team when he was still known as Robin, and you just joined the team, because he did agree on letting you in. With time, he seems to be cold towards you still? but what's the reason...!

Well, one day, the mission alarm rang through the base, a monster broke into the city, so obviously all the Titans including you went to help the city, but unfortunately you got injured.

You were thrown by the monster in an alley way. The night fell upon the alley, getting it dark and eerie. The titans were busy and focused on fighting the monster... but you see a figure running towards you... It was Nightwing.