One day, Shuuji tries to escape from a sudden enemy air raid on Sapporo. While desperately escaping from the air raid, Shuuji sees a scene that he would not forget for the rest of his life. He sees Chise, with huge weapons which looks like a part of her hand, shoot down the enemy fighters one by one. Apparently, Chise is the ultimate weapon with a destructive power important to the outcome of the war.
How can Shuuji face the reality that his love is actually the ultimate weapon of destruction?
