Maneejan finds out that she can travel to the past through a mirror she bought at an antique shop. That mirror brings her to the place of Khun Luang Akarathep Warakorn, a government official who lived over a hundred years ago. Her appearance causes him and everyone in the house a shock. But with her wit, she gradually gains everyone's favor. The more times she travels to the past, the more feeling she and Khun Luang develop for each other. But, what causes her to travel to the past? Why is she the one chosen? In that time when Thailand (formerly Siam) was under pressure from Western Colonialism, will she be able to do anything to help save the country?

While the problem of the country must be solved, Maneejan also faces another problem - the mirror starts to break. She needs to decide whether to reside with the man she loves in the past or to go back to the future to continue living her regular life with her family and friends.