The Duke (played by Ha Jung-woo) wants to marry Miss Hideko (played by Kim Min-hee), a Japanese nobleman, in order to obtain the property of the Japanese noblewoman, and then sends Hideko to a mental hospital on the grounds that she suffers from mental illness. In order to realize his conspiracy, the duke sent Nan Shuxi (played by Jin Tairi), who was born in a family of thieves, to be a maid by Xiuzi's side. As a result, the two should cooperate with each other, and the ignorant Xiuzi in the boudoir and her vast family wealth It's all in their pockets. In Nan Shuxi's eyes, Xiuzi is innocent and vulnerable, kind but sensitive. As time goes by, a sincere friendship develops between the two people who get along day and night, while the duke's hypocritical and greedy mask gradually makes Nan Shuxi want to gagging. However, in the face of high remuneration, Nan Shuxi chose to betray. Under her persuasion, Xiuzi and the Duke eloped and held a wedding ceremony. At this moment, something happened that Nan Shuxi could never imagine. Accident