Shibararetai(2006)

Shibararetai

During the Edo era, as the successor of a famous store, Seijirou was publicly considered as a total playboy. But he's secretly keeping an eye on the school's teacher, Toshinoshin! Under the pressure of his family and a forced omiai, he confesses to Toshinoshin! But he never expected that Toshinoshin was actually a wolf in sheep's clothes!