Naeka Fujiwara  

, 富士原なえか

In half a year, Fujiwara Naeka, a second-year student at Shuuhou Seiha Private High School and the main protagonist, will turn 18. However, she is unaware that she and her brother, Fujiwara Kousuke, are the heirs to their grandfathers' fortune. In order for them to inherit, Naeka must be 18 years old. To ensure their safety and well-being, Fubuki, a young and beautiful maid, and Kogarashi, a burly maid with a mask, have been assigned by their grandparents to take care of the household chores and protect them from any potential assassinations by those who desire the fortune before Naeka turns 18. Naeka's popularity among her peers is due to her large breasts, which are envied by her female friends but admired by guys. This attention has given her a headache, as Kogarashi, her male maid, frequently engages in perverted behavior towards her when he is unaware of it being sexual harassment. Additionally, Naeka participates in the school's kendo club and serves as vice-captain (Fukusho).