To release the story 2 requires a 50 kills.
To release the story 1 requires playing game.
To release the story 3 requires a 100 kills.
To release the story 4 requires a 150 kills.
To release the story 6 requires a 500 kills.
To release the story 5 requires a 300 kills.
To release the story 7 requires a 700 kills.
To release the story 8 requires a 900 kills.
To release the story 10 requires a 1300 kills.
To release the story 9 requires a 1100 kills.