Variable Barricade

A member of a prestigious family and heir to a fortune, Hibari learns that her eccentric grandfather is determined to find her a husband. He arranges to house her in a luxurious villa along with four handsome, hand-picked bachelors and her private butler. As her suitors try to win her hand by any means necessary, Hibari endures endless everyday trials and temptations.
Has her grandpa chosen poorly, or could there be more to these fellows than first meets the eye?

Through all of this, Hibari has two important goals: frighten off each of these marriage candidates, and absolutely refuse to fall in love.