They Are My Noble Master

Kimiaru (Japanese)
They are my noble Masters
You are the Master, the Servant is Me

Genres: comedy, drama, romance

Plot Summary: Due to family troubles, Ren Uesugi and his sister, Mihato, leave their home. They end up moving to the city but find themselves with a lack of money. Somehow they are able to find work in the form of the Kuonji family's mansion, being employed as servants to the three sisters of the Kuonji family: Shinra, Miyu, and Yume. Being a servant also associates Ren with the mansion's additional servants and the Kuonji sisters' friends.

Opening Theme:
"Hizamazuku Made 5 Byo Dake!" by Miyuki Hashimoto

Ending Theme:
"Butler Switch On! (Butler スイッチ オーン！)" by Yuko Goto