Through a sudden transmigration, Song Xiaoyu became the true daughter just found back by the Ningyuan Marquis Manor. Who would have thought that her biological parents favor the adopted daughter, and several older brothers also protect the fake daughter everywhere, with everyone waiting to watch her make a fool of herself. But Song Xiaoyu refuses to play by common sense! Facing harassment, she fights back cleverly; encountering injustice, she argues with reason. While others vie for favor, she only wants to save money and live a good day, stirring up the marquis manor endlessly with her intelligence and wit! By a fortuitous coincidence, she also gets acquainted with the powerful and influential Prince Li, breaking all the way from the inner quarters of the marquis manor into the political turmoil of the capital. Destined to be foil to others, she step by step lives out a wonderful life belonging to herself!