Seitokai Yakuindomo

Tsuda Takatoshi is about to begin his first year in Ousai Academy. His decision to enter Ousai was based upon it being close to his home and he paid no heed to the fact he'd be among the first boys to enter the recently gender-integrated school. On his first trip to school, Takatoshi is surrounded by girls; the train has nothing but girls, the walk to school has nothing but girls and once he finally arrives he is approached by a group of girls and summarily appointed vice-president of the student council and, as expected, he is the only boy there. Now Takatoshi finds himself surrounded by crazy girls who do nothing but horrify him with their candid conversations about feminine hygiene products and, what's worse, assume he's the worst kind of man, the kind who doesn't clean himself and watches porn all day long.

Student Council's Discretion

The members of the student council of Hekiyou Gakuen are chosen by a popularity vote. As a result, all the members are cute girls except for Sugisaki Ken, who studied hard to enter the council. The story features the endless chattering of the members full of parodies of "The Melancholy of Haruhi Suzumiya", "Dragon Ball", "Death Note", etc.

YuruYuri

Right after starting middle school, Akari Akaza joins the Amusement Club which is composed solely by her two childhood friends, Kyouko Toshinou and Yui Funami. Chinatsu Yoshikawa, Akaza's classmate, becomes a member after finding out about the dissolution of the Tea Club. The Amusement Club, situated at the tea room facility since the Tea Club disbanded, has no clear purpose, being free for the girls to do whatever they want. (Source: Anime News Network)

Baka and Test - Summon the Beasts

The story centers around Akihisa Yoshii, the "baka" of the title. His academy rigidly divides up the student body into classes based on the results of tests. The prodigies are in the A class with reclining seats complete with air conditioning, but Akihisa is in F class, the lowest rung of the school ladder which is furnished only with low, decrepit tables and worn-out straw tatami mats. A girl named Mizuki Himeji is actually one of the smartest girls in Akihisa's sophomore year, but she had a fever on test day and was pigeonholed into the F class. Besides Mizuki (who Akihisa secretly adores), the F class also has Yuuji Sakamoto, the class president who has been Akihisa's friend and partner-in-crime since the freshman year. The school happens to have developed experiments to summon fantasy creatures, and Akihisa decides to rally F class to take on the higher-tiered classes and seize their perks. The F class uses the summoned creatures in an all-out battle for school supremacy.

And you thought there is never a girl online?

The story centers on Hideki Nishimura, a young man who confessed to a person he thought was a girl online, only for that person to turn out to be a boy. He keeps this "black history" secret and swears to never to trust a "girl" online again. However, one day a girl online confesses to him, and it turns out she's actually a beautiful girl named Ako Tamaki. Ako cannot tell the difference between the online world and reality, and she is a loner who has trouble communicating. Hideki and his friends from his guild decide to work together to "correct" her. (Source: Anime News Network)