Haginokouji Seiya-sama no Ran

Haginokouji Seiya-sama no Ran summary:

Bathed in fame, authority, assets... The noble family of Kyoto Haginokouji. Seiya-sama the next head of the family, has just reached the age of 16 and still goes to high school. With anarchistic family customs, he can't stand having to keep his life a secret! His sole ally? The handsome level-headed Takakura Yoshiki. He plays the role as the Haginokouji family's young and skillful private secretary, but when it comes to his young master's childish antics, he melts on the spot...! The series is incomplete because Tohjoh Asami passed away due to illness.