Hida Kizuna possesses the HHG (Heart Hybrid Gear) ability, but it is not strong enough to make him particularly important. His older sister calls him to transfer to a strategic defense school, where many of the students (many of which are large-breasted girls) use their HHG abilities to fight invaders from another world while wearing extremely skimpy pilot outfits. Kizuna’s fighting ability doesn’t measure up, but his sister has another plan—apparently having erotic experiences with Kizuna will allow the girls to replenish their energy or power-up. It looks like his new school life is going to be full of embarrassment.

Yoshiko Hanabatake is an idiot beyond all belief. Somehow managing to consistently score zeroes on all of her tests and consumed by an absurd obsession with bananas, her senseless acts have caused even her own mother to lose all hope. Only one person is up to the task of keeping her insanity in check: childhood friend Akuru “A-kun” Akutsu.

Though he bemoans the ridiculous behavior he has to endure, the studious but terrifying A-kun is always ready to put an end to any stupidity Yoshiko gets up to, with no qualms about using physical force. Unfortunately, no matter how many times he attempts to knock some sense into her, the girl bounces right back to her usual shenanigans, even dragging in some other eccentrics along for the ride. Try as he might to rein in her nonsense, every moment is unpredictable with Yoshiko and her profound idiocy on the loose.

Having a friend that knows you inside out should be a good thing, but in Nishikata’s case, the opposite is true.

His classmate Takagi loves to tease him on a daily basis, and she uses her extensive knowledge of his behavior to predict exactly how he will react to her teasing, making it nearly impossible for Nishikata to ever make a successful comeback. Despite this, Nishikata vows to someday give Takagi a taste of her own medicine by making her blush out of embarrassment from his teasing.

After losing both parents in a fatal plane crash, teenager Ryuuichi Kashima must adjust to his new life as the guardian of his younger brother Kotarou. Although Ryuuichi is able to maintain a friendly and kindhearted demeanor, Kotarou is a reserved toddler still too young to understand the reality of the situation. At their parents’ funeral, they are approached by Youko Morinomiya, the stern chairman of an elite academy, who decides to take them under her care.

However, there is one condition Ryuuichi must fulfill in exchange for a roof over their heads and enrolment in the school—he must become the school’s babysitter. In an effort to support the female teachers at the academy, a babysitter’s club was established to look after their infant children; unfortunately, the club is severely short-staffed, so now not only is Ryuuichi responsible for his little brother, but also a handful of toddlers who possess dynamic personalities.

To the outside world, Hanabi Yasuraoka and Mugi Awaya are the perfect couple. But in reality, they just share the same secret pain: they are both in love with other people they cannot be with.

Hanabi has loved her childhood friend and neighbor Narumi Kanai for as long as she can remember, so she is elated to discover that he is her new homeroom teacher. However, Narumi is soon noticed by the music teacher, Akane Minagawa, and a relationship begins to blossom between them, much to Hanabi’s dismay.

Mugi was tutored by Akane in middle school, and has been in love with her since then. Through a chance meeting in the hallway, he encounters Hanabi. As these two lonely souls spend more time together, they decide to use each other as a substitute for the one they truly love, sharing physical intimacy with one another in order to stave off their loneliness.

Poor Shinichirou Asano has the worst of luck. His parents abandoned him and ran off to Europe. If that isn’t bad enough on its own, they barely left him any money to take care of himself. In order to pay rent and keep a roof over his head, he has to work. Unfortunately, he was just fired from his last job and as a high school student, he doesn’t have many other prospects.

One evening, he’s attacked by a centipede monster on his way home. Shinichirou is saved by a mysterious girl with a bow and arrow, who he later discovers is Sakuya Shimazu, a beautiful student who attends his school. But when he later helps an injured girl, he discovers two things. First, the injured girl isn’t human at all but rather a nekomata, a two-tailed demon cat. And second, Sakuya comes from a family of exorcists, who’ve protected humanity from rogue monsters and spirits for generations. Because Shinichirou was responsible for releasing the nekomata, Sakuya enlists his help in recapturing the demon, but that’s just the beginning of Shinichirou’s relationship with Sakuya. It turns out the Shimazu family needs a housekeeper and it just so happens that Shinichirou excels at cooking and likes to clean! It may not be his dream job, but if it pays the rent and puts food on the table…

During the summer of her freshman year of high school, Yuzu Aihara’s mother remarried, forcing her to transfer to a new school. To a fashionable socialite like Yuzu, this inconvenient event is just another opportunity to make new friends, fall in love, and finally experience a first kiss. Unfortunately, Yuzu’s dreams and style do not conform with her new ultrastrict, all-girls school, filled with obedient shut-ins and overachieving grade-skippers. Her gaudy appearance manages to grab the attention of Mei Aihara, the beautiful and imposing student council president, who immediately proceeds to sensually caress Yuzu’s body in an effort to confiscate her cellphone.

Thoroughly exhausted from her first day, Yuzu arrives home and discovers a shocking truth—Mei is actually her new step-sister! Though Yuzu initially tries to be friendly with her, Mei’s cold shoulder routine forces Yuzu to begin teasing her. But before Yuzu can finish her sentence, Mei forces her to the ground and kisses her, with Yuzu desperately trying to break free. Once done, Mei storms out of the room, leaving Yuzu to ponder the true nature of her first kiss, and the secrets behind the tortured expression in the eyes of her new sister.

The student band “After School Tea Time” (lead guitarist Yui Hirasawa, bassist Mio Akiyama, drummer Ritsu Tanaika, and keyboardist Tsumugi Kotobuki) are ready to graduate and take their band to new heights. But before they can do that, they must recruit new members to ensure the survival of the light music club!

Between band practice, club recruitment, and studying, the girls stumble through daily teenager life: concerts, college applications, holidays, and vacations. Along with junior club member Azusa Nakano, the girls of K-On!! are ready to make their senior year of high school a great one!

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?

Tsutsui Hikari is an otaku, and he mostly avoids social life. Hikari has only one friend at school, who is also a social misfit, and he is mocked brutally by most of his classmates for being creepy and weird. One day, he ends up having to clean the school pool with Igarashi Iroha, who appears to be pretty much everything he hates in real-life girls. She skips school, has a blunt manner, doesn’t have female friends, and seems the sort to be promiscuous. However, she is friendly to Hikari, and even stands up to the people who make fun of him. Hikari’s bitterness and trust issues lead him to say pretty harsh things to Iroha, but she never dismisses him as creepy. After a while, it starts to look like Iroha may become his first real-life, 3D girlfriend! Will he be able to handle it?

For centuries, Heaven has required its young angels to live and study among humans in order to become full-fledged angels. This is no different for top-of-her-class Gabriel White Tenma, who believes it is her mission to be a great angel who will bring happiness to mankind. However, Gabriel grows addicted to video games on Earth and eventually becomes a hikikomori. Proclaiming herself a “Faillen Angel,” she is apathetic to everything else—much to the annoyance of Vignette April Tsukinose, a demon whom Gabriel befriended in her angelic early days on Earth.

Vignette’s attempts to revert Gabriel back to her previous self are in vain, as Gabriel shoots down any attempt to change her precious lifestyle. As they spend their time on Earth, they meet two eccentric personalities: the angel Raphiel Ainsworth Shiraha, Gabriel’s classmate with a penchant for sadism, and the demon Satanichia McDowell Kurumizawa, a clumsy self-proclaimed future ruler of the Underworld.

Gabriel DropOut follows these four friends’ comedic lives as they utterly fail to understand what it truly means to be a demon or an angel.