Kaichou Wa Maid Sama (The Student Council President is a Maid) 26 episodes
Ayuzawa Misaki is the first female student council president of the former all-boy Seika Highschool. She rules with an iron fist to protect and increase the 20% female population. After a long day lording over her classmates she serves as part-time waitress in a maid cafe. But one day the most popular boy Usui discovers her secret after-school activities.
I read the manga before and I didn't consider it really a 100% reverse harem. The summary above is taken from my manga entry 2 years ago. When I found about it being animated I had doubts if it will still have a reverse harem element. I haven't read the manga again since I posted about it but in the manga the stupid trio didn't have a name and the characters that are interested with Ayuzawa have not yet appeared or may not be in the manga at all. The anime turned out to be sweeter and funnier! The story is anything goes that happens in the school and the cafe. I wish they closed the real deal between the two a few episodes before it ends. It kinda drags before the inevitable realization and when it does happen it kinda feel lame. Usui is lovable with his perverted tactics lolol.