Maid Sama! is a shojo manga series that received an anime adaptation in 2010.
Once an all-boys school, Seika High, infamous for its rowdy students, has recently become a co-ed school. However, with the female population still remaining a minority even after the change over the recent years, Misaki Ayuzawa works hard to make the school a better place for girls. She puts a lot of effort into academics and athletics, and earns the trust of the teachers. Eventually, she becomes the first female student council president. Misaki has gained a reputation, among the male students body as a strict boy-hating demon dictator and as a shining hope for the teachers and fellow female students. However, despite her reputation, she secretly works part-time at a maid café in order to support her ill mom and sister.
Unfortunately, Misaki's secret is soon discovered by Takumi Usui, a popular boy at Seika High. Instead of exposing it to the school, though, Usui keeps it for himself and even becomes a regular at the café, much to Misaki's chagrin. Known for being a genius in pretty much everything from academics to athletics and for having rejected numerous confession of his female peers, Usui takes a liking to Misaki because all the other girls only care about Usui's looks. After going through various awkward situations, including being confronted by a forgotten childhood friend of hers, Misaki falls in love with Usui, who reciprocates, and the two soon become a couple.