Hayate no Gotoku!

Synopsis

The superintendent of Hakuou Academy, Kirika Kuzuha, decides to hold a Butler Battle Tournament to see who the strongest butler of all Hakuou is. Hinagiku is outraged when she asked Kirika about the "butler battle tournament" flyer she sent. Kirika questioned Hayate about the butler's strength meaningless, in which she finds the answer wrong. At first, Hayate is reluctant to enter the tournament, but Nagi convinces him to do so so she can see him win. Later that evening, Maria tells Hayate that he should not enter the tournament; however, Hayate has made his decision that he will enter the tournament, for Nagi's sake, so the next day, the tournament will begin in the Hakuou's dome. In the meantime, Hinagiku becomes a temporary butler so that she can enter the tournament to interfere with the superintendent's plans. Hinagiku defeats Kaede against his Ultimate Move.

(Source: Wikipedia)