A woman agrees to replace Lady Daton and accompany a man to the capital, entering a dangerous deal with someone who remains obsessed with his lost lover.

As she spends more time with him, she begins noticing unsettling similarities between herself and the woman he once loved. They share the same artistic talent, the same fear of water, and countless other traits that seem impossible to be mere coincidence.

Confused by his feelings and questioning who he truly loves, she decides to leave him and uncover the truth behind his twisted game and the mysterious woman named Pheria.