Chou Yo Hana Yo

From Viz: Choko Kuze is the sensible daughter of a venerable family who went bankrupt. She joins a real estate company as an entry-level office worker, but her eccentric boss is harder on her than anyone else in the company! After hearing him inadvertently call her "milady, " she realizes he was the young servant boy she knew as a child. At work he's a tyrant, but after hours he insists on treating her like a lady of the nobility. Is romance even possible for a couple locked in such a crazy role reversal?