Since their youth, Eden and Cassian have been fierce rivals, competing at every turn and refusing to yield to one another. Neither believed they could ever fall for the other. After an unexpected incident, Eden wakes up and learns he is legally married to Cassian, his longtime nemesis. Forced to live together as spouses, they start their marriage full of caution and quarrels. As time passes, layers of misunderstandings are uncovered. Eden finds the long-hidden deep affection beneath Cassian’s cold facade, while Cassian sees the softness under Eden’s stubborn exterior. Faced with family pressure, public gossip and hidden schemes, the two former enemies lay down their hostility, face their true feelings, grow fond of each other, stand side by side against dangers, and finally become devoted partners.