Mei-chan no Shitsuji

Mei is a young girl from the countryside with faint memories of a good-looking man who once helped her when she was lost. After learning she has inherited a large amount of money, she is sent to a prestigious academy for well-born young women. There, she meets Rihito, a handsome and competent butler who turns out to be the man from her childhood memory. He is also the brother of Kento, who is infatuated with Mei.