While mourning the loss of the two senior members of the Host Club, who are preparing to graduate and lead separate lives at university, the members of the club are surprised when Mori challenges Hunny to a duel.
The Host Club members throw all they have into stopping Tamaki's father and grandmother's plans to shut down the Host Club and ship Haruhi abroad while Tamaki tries to deal with the power struggle in his family.
Wanting to ask Haruhi out, Tamaki tries to plan the best first date ever, but even the help of the Host Club members may not be enough to save Tamaki from himself.
While mourning the loss of the two senior members of the Host Club, who are preparing to graduate and lead separate lives at university, the members of the club are surprised when Mori challenges Hunny to a duel.
Haruhi, a poor girl forced to pay a debt by working at an all-male club as a boy, finds a magazine left by Mei that contains a checklist for determining if a girl is in love.
Hikaru asks Haruhi to go out, but he is willing to wait for her answer. At the same time, he tries to make be sure that Tamaki knows he is in love with Haruhi.
Haruhi, a poor girl who is paying off her debt while working at a male club as a boy, tries to survive the sports festival at Ouran High School when the bonds of friendship are tested.
Haruhi and not-so-brave class president Kazukiyo Souga struggle through a test of courage--the loser of which will be named "Best of Cowards"--on the same team as the twins Hikaru and Kaoru Hitachiin.
Haruhi, a scholarship student at the exclusive Ouran High School, accidentally breaks an expensive vase belonging to the all-male Host Club and is forced to work for them as a boy to repay her debt.
The Host Club members are busy entertaining visiting parents at the school festival and trying to help their beloved leader Tamaki get into his grandmother's good graces.