The Ouran High School Fair provides the catalyst for a pair of disapproving fathers to tip back into their sons' lives, with public humiliation for one and an arranged marriage for the other.
Hikaru and Tamaki's insecurities show when Haruhi runs into a male friend from middle school days, but while Tamaki recovers, Hikaru does not, so Kaoru steps in for his twin's sake.
The heir to a crime syndicate comes to Host Club to be Mori's apprentice, hoping for a share in his secret of having friends while owning a scary face.
Seeking quietude for study at an elite academy, honors student Haruhi Fujioka comes upon the school's Host Club - six elite boys who host parties for girl classmates - and becomes its newest and most reluctant member.