Cast: IZAWA Rei

Erika Klause was separated from her brother when she was little. Determined to meet him, she decides to enroll at Rosenstolz Academy, where she is sure that she will find him. But, on the first day of school, she accidentally meets the five Strahl candidates. Since assistants of the Strahl candidates gain access to the boys' dormitories, Erika becomes determined to become an assistant in order to find her long lost brother. What awaits Erika at Rosenstolz Academy?

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...?!