Kamen no Maid Guy

Fujiwara Naeka appears to be an ordinary 17-year-old high school student, but she is one of two heirs to a wealthy tycoon's fortune, which she will inherit upon turning 18 in six months. To protect her and her brother, Kousuke, from those seeking to harm them and claim the inheritance, two maids have been assigned to them. Fubuki is a young and attractive maid, while Kogarashi is a tall, masked male maid. Their role is to ensure the siblings' safety amid threats from individuals plotting against them.