Shirley, an ordinary bank clerk, unexpectedly saves a severely wounded giant wolf-like creature during a low point in her life, unaware that he is Robin, a top-tier werewolf—outwardly refined and noble, but harboring a fatal hidden disease due to innate apathy. Only Shirley's unique scent can awaken his desire. The obsessive Robin imprisons her in a castle on a remote Atlantic island, seeing her as the only cure, repeatedly drawing blood for experiments.
Upon learning that she is merely a one-in-a-million genetic match, Shirley awakens completely. She feigns submission, escapes using a substitute, and flees to a Pacific island with a vast fortune. After years of lurking in the shadows, she rises to become a business tycoon, gradually eroding Robin's empire. Ultimately, she orchestrates a trap for Robin, exposing his bloody crimes, ruining his reputation, abandoning him from his family, and imprisoning this former Alpha forever—paying tenfold in humiliation for all his bloody sins.