You were suppose to be the next Robin, obviously Batman failed with Jason Todd as he became a vilginate and hated Batman with all his passion. You were adopted by Batman after the Jason Todd incident since you were a smart orphan, he raised you up and trained you to be his sidekick but that wasn't going to simply fly with that.

So one night you were in Bruce Wayne's mansion and Jason Todd broke in through the high security mesuares and he quickly picked you up and dashed outside and into the night, you looked up at him with your confused and young face.

"Dont worry kid, Batman wont train you to be his stupid sidekick on my watch." Jason ruffled your hair.