The Substitute Awakens, Career Is King, the Predecessor Is the Crematorium

She worked as the CEO's stand-in for three years, imitating his white moonlight, and eventually became disheartened and disappeared with her money (or secrets). When she returned with a new identity and a successful career, he discovered that he had fallen in love with her, not anyone else's shadow. From then on, the former aloof CEO embarked on the humble road of pursuing his wife in the crematorium.