Marshall, the Count's illegitimate daughter. In order not to tarnish the name of her prestigious family, she keeps her lips sealed about a secret. She has said that when she falls asleep, her soul escapes her body! Marshall enjoys this bizarre phenomenon positively, after an accident that happened to her when she was a child. Furthermore, she discovered that she had acquired a new ability of possession. One day, during a ball, to commemorate the armistice in the Imperial Palace, she is pushed into an unpleasant situation with the military commander-in-chief, Duke Ludvillian, who is called the 'ice wall of the empire'...