Naeka is a seventeen year old girl who will inherit a large fortune when she turns eighteen, however, many people might try to assassinate her and take the fortune, so her rich grandfather sends two maids, Kogarashi and Fubuki to act as her and her brother's bodyguards.

Kogarashi and Fubuki battle a female Masked Maid with shark teeth and powers rivaling Kogarashi, hired to assassinate Naeka. This maid, hired by a wealthy man attending Naeka's Grandfather's 70th birthday party, appears to be of the same clan as Kogarashi and reveals him to be hundreds of years old.