Fujiwara Naeka, a 17-year-old high school student, is your ordinary teenager. So we reasoned. She's really one of two remaining heirs of a billionaire, and she has the right to inherit his vast money when she reaches 18 in a little over a year. Fubuki, a young and attractive maid, and Kogarashi, a huge muscular maid man with a mask, have been entrusted to protect Naeka and her brother Kousuke from those who would plan their demise and take her inheritance.