During the reign of King Rama VI, Prince Rangsitorn, known as Than Chai Yai, falls deeply in love with Princess Man Kaew, a gifted young woman living at his father’s palace. However, their love faces fierce opposition from those determined to keep them apart. Years later, a young language teacher named Rachawadee arrives at a girls’ school housed in the same palace, where she feels an inexplicable connection to its past and to the mysterious spirit of Than Chai Yai, who continues to wait for his beloved. As Rachawadee uncovers the secrets of the palace and becomes entangled in a complicated web of love, jealousy, and revenge, the boundary between past and present begins to blur. Could their fateful connection transcend time and give two souls another chance at love?