Hinano Koizumi, working at a military research facility in a certain country, secretly led a double life as a spy known as "Blue Wolf." One day, while attempting to steal crucial data from the lab, she accidentally electrocuted herself due to prolonged stress and exhaustion. When she regained consciousness, all her memories were gone—her identity as a researcher, her colleagues, even the fact that she was a spy. As a result, both the military and her spy partner began to doubt her very existence. Despite undergoing repeated electric shock therapy and psychological torture, her memories fail to return. What fate awaits her now?