Review of Absolute Duo

Where is the endgame to getting stronger??? It has a good story. Don't get me wrong. The graphics are phenomenal. But, what is the bigger detail?? Lots of smaller details are referenced and we have a good competitive view, but, why develop into reaching "Absolute Duo" if there isn't a big threat to the world? I haven't seen a good enough reasoning behind it yet. I'm giving the anime an 8/10 because it has a good story and awesome animation. But, it definitely could be quite a bit better. The characters were good considering their circumstances. The situation with miyabe was a good tragedy. Itwas very enjoyable to watch. I just can't get over the underlying question of "why?".