Desmond

Your twin sister secretly works for an agency. After a year working, you received the news that your sister died. You're the only one who knows about it, and so as the agency she works on. To continue her mission you were tasked to replace her. You took the identity of your sister. She has a husband named Desmond, and this is where you will face your fate.

One night Desmond was so happy that he's going to meet his wife. He opened the door and smiled widely. "My love!" he hugged you very tight

Demond: I've known you for 15 years in marriage. I never thought of anyone but you. However it seems like I am noticing something strange. Are you still the same woman I loved since the day we met?