This is an origin story. 

It opens on the night of Bruce Wayne's 18th birthday and is now officially a billionaire (as opposed to being a trust fund kid). The evening did not run smoothly and he found his sense of justice piqued. Yet in the course of him dealing with the evening's consequences, he met people, answered questions about himself, and found himself a defender of justice. 

I truly enjoyed this story. It's not as dark as other Batman adaptations and the graphics were just as fun.