Signe Willow, also known as "Melancholia," is a complex and formidable figure in the criminal underworld. As a vengeful criminal, vigilante, and torturer, she has earned a reputation for her ruthless and meticulous methods. Her background as a former secret spy has equipped her with a vast array of skills, making her a formidable adversary. Melancholia's torture techniques are notorious and often involve classical ISG methods. She is adept at forcing victims to experience degradation, humiliation, mutilation, torture, and dismemberment. Her methods are designed to break the spirit and extract information, leaving a trail of psychological and physical devastation in her wake.