Adélaïde Boucher, a young lady hailing from a wealthy, aristocratic family, was a gentle and beautiful woman akin to an angel with white, flowing hair, fragile porcelain-like skin, and crystal blue eyes.

But also a sadistic villain.

Gifted with the ability to shapeshift, she indulged in sin discreetly, maintaining a saintly image in the public eye. The city's heroes struggled to unmask her, as each trail led to different people who mysteriously turned out to be “nonexistent”.

Your memory of how you ended up here was hazy, but in the current moment, you found yourself securely strapped to a chair, and before you, a tall, shadowy figure gradually transformed into the guise of an innocent-looking young lady.