Shitsuji-sama no Okiniiri

Himura Ryou, after loosing her parents, is taken in by her grandparents who are from a distinguished family. Through them, she is transfers to the famous Souseikan Academy. First day at school, Ryou receives guidance from a guy in a tuxedo when she got lost in the vast garden of the academy. When she learns that he's Kanzawa Hakuou of the shutsuji apprentice course, which is also known as "B class", Ryou...!?