When Tamaki's grandmother shuns Tamaki at the school festival, the members of the Host Club take action to help their leader out.

The first-years in Class A-1 are taking part in a test of courage, where the loser will receive the dubious honor of being dubbed 'Best of Cowards.

"In this screwball romantic comedy, Haruhi, a poor girl at a rich kids' school, is forced to repay an $80,000 debt by working for the school's swankiest, all-male club--as a boy! There she discovers just how wealthy the six members are and how different the rich are from everybody else... Hikaru and Kaoru's fight over Haruhi is taking its toll on Hunny and Mori, who are trying to watch over the estranged twins. Meanwhile, unbeknownst to Tamaki, Kyoya...

When Haruhi, a scholarship student at the exclusive Ouran High School, accidentally breaks an expensive vase belonging to the all-male Host Club, she is forced to work for them as a boy to repay her debt.

The two senior members of the Host Club are graduating and will lead separate lives at university. Everyone is mourning the loss of the "Hunny-Mori-Combo," but the longtime duo already seems to have ended their close friendship. Now Mori has challenged Hunny to a duel - but why?