A couple about to get married meet a beautiful wedding planner at a wedding hall. Behind her affable demeanor, she secretly targets the 'happy groom', finding openings in the man's heart and slowly breaking him down. The man is initially confused but he cannot resist her passionate yet skillful pleasure and gradually becomes addicted. Her goal is to become 'an unforgettable woman'. What kind of mark will this leave on the man's married life? A sweet and immoral 'reverse cuckold' drama.