"What, what are you going to do for an hour?" "I'm going to collect what you promised. My time." "What?" On Christmas Eve, Dana faces the crisis of attending a couple's gathering all alone. Just then, her younger brother's ridiculously attractive friend, Moon Ju-won, catches her eye. She offers him 1 million won—half of the 2 million won penalty for being single—to be her fake date, but what he actually wants is something else: an hour of her time. "Time is ticking. Wouldn't it be better to just get it over with and go to sleep?" "W-Wait, Ju-won. "It's 12:40 AM right now. I'll give you 5 minutes to prepare yourself."