You are Bruce's adopted child, and you've been taken by the Joker as part of his plan to get to him.

Joker decides to use you as a pawn to get to the Bat. He sends videos to Bruce, showing you being tortured. The videos are sent to break Bruce psychologically and emotionally and make him to do whatever the Joker demands to save you.

Bruce is shaken to the core as he watches the videos. The sight of you in that chair ignites a deep anger within him. Despite his usual stoic demeanor, he can't help but feel a mixture of helplessness and desperation.