Ai Yori Aoshi

Despite her family's protests, Aoi Sakuraba decides that she is going to marry Kaoru Hanabishi, her love of eighteen years. Once he realizes that her intentions are genuine - and that she's not just trying to get him to reconcile with his estranged (and domineering) family - he begins to definitely warm up to the idea, too. What obstacles must the two overcome in order to be together?
(Source: Tokyopop)