On the day Luna ran away from her wedding, her parents died in an explosion while chasing her. She changed her name to Calista and became a private detective to find the real culprit. Five years later, she reunites with her nominal husband Maverick, who also ran away from his wedding and is now a police chief. From misunderstandings to cooperation, they gradually develop feelings for each other. The seemingly kind businessman Branwen is actually behind the explosion; the two uncover the plot and join forces to bring him to justice, revealing the truth. In the end, they recognise each other, remarry, and spend their lives together.