Chise tends to be a normal highschool girl to everybody especially Shuji and Akemi. In reality, she is an ultime weapon, part-human/part-mechanical being who fight the enemy without any mercy (the army needs her everytime they fight). However, Shuji (Chise\'s boyfriend) finds out the truth about her and wants her to quit this slaughtering life by running away from all this fighting. Shuji is the only person that can control Chise to kill anymore people (she becomes indictated that killing people is very easy for her). But, the enemy is everywhere so her mechanical form (her dark subconcious mode) wants to destroy the entire world because of her awseome destruction power she has to ease the pain of people who are involved in it. Will Shuji be able to control her or will she destroy town after town until the war ends for good??