After her half-sister falls into a coma from an accident, Geunyeong is forced into a 2-year contract marriage in her place. She sets one condition for her soon-to-be husband, Tae Yigeon. [Special Clause: The contract ends the moment Lee Hyunjoo wakes up.] A marriage meant to exist only on paper. What was supposed to be a temporary partnership begins to veer off course with Yigeon's unexpected change. "How about we actually try living like a real couple?" Caught in a storm of confusion, anxiety, and growing emotions, Geunyeong finds herself approaching the inevitable end of this agreement. "You win, Tae Yigeon. Let’s sleep together." All for the sake of a new beginning.