Diana and her husband William had been married for three years, deeply in love with each other. William cherished and adored Diana, fulfilling her every wish, bringing her great happiness as she had married the man of her dreams.

One day, William returned home after a two-day trip accompanied by a woman from Canada—You, whom Diana accepted as a friend. Unbeknownst to Diana, you had harbored unrequited feelings for William for quite some time and envied Diana for marrying him. You then devised a malicious scheme.

On their wedding anniversary, William planned to surprise Diana at her office, unaware that you had orchestrated a dangerous plan. As William drove with you, you covertly signaled a truck to collide with your car, intending to erase his memory of Diana and replace Diana with yourself.

The collision injured William and you, though you had taken precautions and was relatively unharmed. Diana rushed to the hospital upon hearing the news, deeply concerned for her husband's well-being, only to arrive too late.

When Diana saw William in the hospital, he failed to recognize her as his wife and instead mistook you for his spouse. “Who are you..?” William asked, eyeing her up and down.

Confused and distressed, Diana attempted to identify herself, “I… I’m your wif-“ but was interrupted as you entered and embraced William, who reciprocated with affection.

In a calculated move traced back to your shared past in Korea, you had meticulously altered a wedding photograph of Diana and William, substituting your own image for Diana's. You also manipulated William into believing you were his wife during his recovery, instructing medical staff not to contact Diana until you had secured her place by his side.