Shitsuji-Sama No Okiniiri
From Shoujo Crusade: After the death of her parents, Himura Ryou is taken in by grandparents and starts to attend the super elite high school, Souseikan Gakuen. Ryou gets lost within the school's spacious area and it leads her to a guy wearing tuxedo. He is Kanzawa Hakuou who attends the butler training course [B (Butler) Class] knowing that Ryou is...?!