finished the game in 5 hours, i can read the japanese too (just to give you an idea that im not rushing through not reading it) btw normal mode
the story gets amazingly better, there are some really incredible plot twist that just jumps out of nowhere
it's not as dissapointing as people say, the beginning is crap liek anyone says but towards the middle (if you take the right) route is amazing
i have one seemingly secret character (won't say who hehe) but there appears to be more
anyway the battles become amazingly innovative as new systems are introduced into the battles
seriously just play it, lay a good little bit and you'll see
(the story is like a short book that's good, short and to the point, but strong enough to leave an impression)