In the Kingdom of Ayudhya, a mischievous young lady, Mang-Mao (Taew), who is the daughter of a wealthy merchant, is close to a member of the royal family. When she was at the Palace, she met Khan-Thong (James), a eunuch incognito. Khan-Thong had to disguise himself as a eunuch so that he could infiltrate the Palace to find his parent's murderer. While he was investigating their deaths, he comes across Mang-Mao, who could hinder his mission. Will he be able to hide his true identity and focus on his plan, or will their encounter blossoms to a different ending?