A modern gold medal housekeeper, traveled through time and became a noble concubine who was regarded as the "white moonlight substitute". Bound to the "Top Housekeeping Training System", the task is to transform Xiao Yan, the waste emperor with zero living ability, into the "Five Good Men" - able to take care of himself, be polite, able to keep accounts, and able to cook. She forced him to wash his face and brush his teeth, tidy up the royal desk, and learn how to cook. From an outrageously sloppy emperor, he was trained into a tsundere king who could cook egg fried rice for her and write love poems. But after the mission was completed, the system asked her: Stay or go back to modern times? She took a look at the caramel pudding made by the emperor himself and ordered "stay".
