GuessAnime.

10. GJ-bu

Shinomiya Kyouya is forced to become a new member of the GJ, an unidentified club that dwells in a room of the former building of a certain school. Here he meets the club leader, Mao, a short girl with a big attitude; Mao's younger sister, Megumi, who has the heart of a bipolar angel; the recognized genius with a lack of common sense, Shion; and the always-hungry and mysterious Kirara. Time flies with these unique girls around.

GJ Club is finished and has 12 Episodes. It is also Known as: GJ部, Good Job-bu

9. Danshi Koukousei no Nichijou

Roaming the halls of the all-boys Sanada North High School are three close comrades: the eccentric ringleader with a hyperactive imagination Hidenori, the passionate Yoshitake, and the rational and prudent Tadakuni. Their lives are filled with giant robots, true love, and intense drama... in their colorful imaginations, at least. In reality, they are just an everyday trio of ordinary guys trying to pass the time, but who said everyday life couldn't be interesting? Whether it's an intricate RPG reenactment or an unexpected romantic encounter on the riverbank at sunset, Danshi Koukousei no Nichijou is rife with bizarre yet hilariously relatable situations that are anything but mundane.

Daily Lives of High School Boys is finished and has 12 Episodes. It is also Known as: 男子高校生の日常, Danshi Koukousei no Nichijou

8. Yuru Yuri

After a year in grade school without her childhood friends, first year student Akari Akaza is finally reunited with second years Yui Funami and Kyouko Toshinou at their all-girls' middle school. During the duo's first year, Yui and Kyouko formed the "Amusement Club" which occupies the now nonexistent Tea Club's room. Shortly after Akari joins, one of her fellow classmates, Chinatsu Yoshikawa, pays the trio a visit under the impression that they are the Tea Club; it is only once the three girls explain that the Tea Club has been disbanded that they can convince Chinatsu to join the Amusement Club—a group with no purpose other than to provide entertainment for its members.

Based on the slice-of-life manga by Namori, Yuru Yuri is an eccentric comedy about a group of girls who spend their spare time drinking tea and fawning over each other, all while completely failing to even notice the supposed main character Akari amongst them.

YuruYuri: Happy Go Lily is finished and has 12 Episodes. It is also Known as: ゆるゆり, YRYR

7. Yuyushiki

The story follows the school life of the three girls, Yuzuko, Yukari, and Yui, who join their high school's Data Processing Club. The odd friendship between the three make for wacky humor in even the most mundane of events.

Yuyushiki is finished and has 12 Episodes. It is also Known as: ゆゆ式, Yuyu-shiki

6. Seitokai Yakuindomo

On his first day of high school at the formerly all-girl's Ousai Private Academy, Takatoshi Tsuda is called out for his untidy uniform by the student council president Shino Amakusa. In apology for delaying Takatoshi for his first class—and stating that the group needs a male point of view to accommodate the arrival of boys at the school—Shino offers him the position of vice president of the student council. Though unwilling, Takatoshi finds himself appointed as the newest member of the student council having yet to even step foot inside the school building.

Takatoshi soon realizes that the other student council members who are more than a little strange: President Shino, who is studious and serious in appearance, but actually a huge pervert, fascinated with the erotic and constantly making lewd jokes; the secretary Aria Shichijou, who may seem like a typical sheltered rich girl, but is just as risque as the president, if not more so; and finally, the treasurer Suzu Hagimura, who may act fairly normal, but has the body of an elementary school student and is extremely self-conscious of it. Surrounded by these colorful characters, the new vice president must now work through a nonstop assault of sexual humor and insanity.

Seitokai Yakuindomo is finished and has 13 Episodes. It is also Known as: 生徒会役員共, SYD

5. Joshiraku

An adaptation of a manga written by the author of Sayonara Zetsubou Sensei about group of girls who discuss random things and usually reach an unusual or humorous conclusion that's far from the initial discussion topic.

Joshiraku is finished and has 13 Episodes. It is also Known as: じょしらく, Rakugo Girls

4. Seitokai no Ichizon

The student council of Hekiyou Gakuen is chosen by popular vote, so of course all the members are cute girls. All except Ken Sugisaki, that is. Ken managed to get a spot by being the top scoring student in his year, which granted him an automatic seat. It wasn’t an easy feat, as Ken is not exactly book-smart, but he studied hard and improved his score just to become a part of the exclusive student council.

However, for such a highly regarded council, the members don’t really do much. Ken spends most of his time trying to turn the girls into his harem, while the girls ignore him in favor of more important things, like running festivals, attempting to boost their popularity, and slowly driving Ken mad in the best way possible.

Get ready for fourth wall breaking, loads of references and parodies, and even a couple of cameos in Seitokai no Ichizon!

Student Council's Discretion is finished and has 12 Episodes. It is also Known as: 生徒会の一存, Seitokai no Ichizon: Hekiyou Gakuen Seitokai Gijiroku, It's Student Council's Judgment

3. Tesagure! Bukatsumono

The CG anime centers around the extracurricular activities of students.

Tesagure! Bukatsumono is finished and has 12 Episodes. It is also Known as: てさぐれ！部活もの, Tesagure! Bukatsu-mono

2. Sabage-bu!

Draw your weapons and take aim, because Sabagebu! is coming at you!

Momoka Sonokawa was just minding her own business on the train one day when she encountered a pervert. Before she could do anything about it, a girl named Miou appears, brandishing two pistols and and scaring him off, only to be arrested herself a few minutes later for possessing firearms.

Later Momoka sees this same girl at her school and follows her to a run down building. It turns out Miou is the president of the school's Survival Game Club, and it doesn't take long for Miou to capture Momoka and force her into joining them.

Over the course of the series, Momoka and her new “friends” will take part in multiple battles against enemies from other schools, a rival from the same school who wants to see the club shut down and even each other . With friends and classmates like these, will Momoka even make it to graduation?

Sabagebu! -Survival Game Club!- is finished and has 12 Episodes. It is also Known as: さばげぶっ!, Survival Game Club!

1. K-On!

Hirasawa Yui, a young, carefree girl entering high school, has her imagination instantly captured when she sees a poster advertising the "Light Music Club." Being the carefree girl that she is, she quickly signs up; however, Yui has a problem, she is unable to play an instrument.

When Yui goes to the clubroom to explain, she's greeted by the other members: Ritsu, Mio, and Tsumugi. Although disheartened at Yui's lack of musical know-how, they still try to convince her to stay to prevent the club's disbandment. After playing Yui a short piece which re-ignites her imagination, they succeed in keeping their new member and guitarist.

Along with the tasks of school and homework, Yui begins to learn the guitar with the help of the other band members, experiencing many mishaps along the way. However, with the school festival drawing near and Yui getting stuck with her practice, will the Light Music Club be ready in time for their debut?

K-ON! is finished and has 13 Episodes. It is also Known as: けいおん!, Keion, K-ON! Season 1