Joon hyeok is preparing to pass the exam for level nine government staff. Since this is his third attempt, he is sure to pass the exam this time. He moved into a boarding apartment as part of his father's special measures to help his son with his studies. But what awaits Junhui in the luxurious house is not thick textbooks, but two free and unrestrained women. Joon hyeok began his cohabitation with the owner of a boarding apartment full of sexy beauties, Aqiong, and the nurse Dal lae, who exudes sexiness from his face and body. Since then, Junhui has started studying women every night instead of his books.
有一天，当他在道场练习时，一个名叫吉本施秉伟（吉本碧配音）的漂亮女孩从天上掉了下来。Yoshimoto莫名其妙地加了一个“妹妹”，开始和Shibing Wei一起生活。看似年轻足智多谋的Masada Yukimura（由Naomiya Rihui配音）、英俊无忧无虑的后藤吉内（由Kobayashi You配音）、优雅的女儿德川千姬（由寿美菜子配音）、丰姬政委富部半藏（由后藤佐树配音），都相继出现在柳生身边。
