This review is written by someone who never played the game, so I rated this based on being an anime itself rather than fanservice. And gee, this is probably the lowest score I have given in my whole life.
The simplest way to describe it is that it is a collage of cutscenes. But first, here are the good points of the story:
And now we proceed to the bad points: Everything else. Elaborate: Cutscenes that makes no sense because they're barely connected with each other. Dialogues that does not let us know what they're really talking about. Character dramas that makes no sense. Individually, the
characters, the music, the plot devices at least have substance but they just don't work out together. It's a big pile of mess, like the the play food children cook by mixing garden leaves, soil and stolen kitchen ingredients.