Shitsuji Senyou.

When he was young, Satori couldn't handle the pressures of the noble lifestyle that the Matsunomiya name came with. As such, Satori's parents decided to lead an average life for his sake. However, after his parents' lives were taken in an accident and his grandfather passed away, Satori was appointed the head of the Matsunomiya family. Now, Master Satori must fix his posture, dining etiquette, and education to become a fitting head. What's worse, relationships between the family and the staff are prohibited. Not only does Satori have to change his entire nature, he must do it with the love of his life, whom he is not allowed to touch, at his every beck and call!

(Source: Torico)