From Chibi Manga:

Tsubaki comes from a really rich family. Since her parents lets her do what she wants to do she parties everyday. She has many friends and guys, and it should have been a fun high school life but, because of one guy she changed!?
And that person is the one that came to Tsubaki’s house as the “strongest” male housekeeper Kazumi. He’s scary and overbearing but he does a perfect job when it comes to housework! And he said “While I’m at it I’ll break Tsubasa’s spirit as well!?” What will happen now!?