She dreams what any normal woman dreams: Find a good man and get married. There’s only one hitch. She has absolutely zero talent in being a housewife! Determined to overcome this problem, she enrolls in classes to learn. The only problem is her teacher turns out to be a man and a younger one at that!

Sachie Wakamura’s mother has just passed away, making her an orphan. Suddenly, a man claiming to be her grandfather appears asking Sachie to live with him. Things aren’t as simple as they seem to be when she realizes her grandfather is the boss of a yakuza gang and she is to live with him and the rest of his men. To make matters worse she is assigned a bodyguard named Rakuto, who is the handsome, popular student council president at her new school. Sachie must now try to fit in with her new family and deal with her developing feelings for Rakuto, who appears to only see her as the granddaughter of his boss. Are Sachie and Rakuto destined to continue in this master-servant relationship forever or will her feelings finally be reciprocated?