"The flimsy excuse given for nobody aging is that the world is ending. So, apparently the first thing that falls victim to entropy is entropy itself. Make the plot holes bigger, Final Fantasy, I don't think this train wreck's gonna fit through them yet. Lightning is then literally given a mission from God. God's building a new world with black jack and hookers, and Lightning has to save everyone she can on the dying one. In return, God will bring Serah back to life. Also, it is discussed in an early scene that God appears to have taken away Lightning's emotions, which explains why the end of the world can be six days away and she's not running around flapping her arms going, "MNEEENENEMENEEEMEE!" Hang on, though! God takes away her emotions and then motivates her with a chance of an emotional reunion with the dead sister?! Choo-choo! Now arriving at Plot Hole Station!"