Maid Sama!

Maid sama(会長はメイド様!?; Kaichou wa Meido-sama!; lit.:The president is a maid!) is a series adapted from the manga by Hiro Fujiwara.

Plot
Misaki Ayuzawa becomes a Student Council president at a previous all-boys school called Seika High School. Most boys fear her, except for a boy named Takumi Usui.

She somehow work secretly at a maid cafe as a waitress, so as to not destroy her school reputation. But this changes after Takumi knew the truth...