Tokyo Butei High School is a special school where armed detectives—"Butei"—are trained to use weapons. Kinji Tōyama is a second year student who has a special ability, but he keeps it a secret to maintain an ordinary, peaceful life. However, when he gets caught in a bombing on the way to school, he encounters Aria H. Kanzaki, the most powerful S-Rank Butei student in Assault Studies.
Thirty years ago a strange phenomenon called a "spacequake" devastated the center of Eurasia, claiming the lives of at least 150 million people. Since then, smaller spacequakes plague the world on an irregular basis. Shido Itsuka, a seemingly ordinary high schooler comes across a mysterious girl at the ground zero of a spacequake and learns from his sister Kotori she is one of the "Spirits" who are the real cause of the spacequakes that occur when they manifest themselves in the world. He also learns that Kotori is the commander of the airship Fraxinus, crewed by the organization Ratatoskr, and is recruited to make use of his mysterious ability to seal the Spirits' powers thus stopping them from being a threat to mankind. However, there is a catch: to seal a Spirit's power, he must make her fall in love with him and kiss him.
Yoshitaka Nakabayashi, a 14-year-old millionaire who got this huge inheritance after his parents died in an accident, found himself needed to be taken care of and tried to hire live-in maids to do the job. Two runaway girls, Izumi Sawatari and her younger sister Mitsuki, stumped into Nakabayashi's mansion and got hired by Yoshitaka immediately, for Yoshitaka is not only a rich boy but also a pervert with uniform fetishes, who wants to be addressed as goshujin-sama (master). Having nowhere else to settle down along with Mitsuki's pet alligator Pochi, Izumi accepted the job reluctantly.
Ayumu Aikawa must continue to fight the Megalo in place of Haruna, who continues to recharge her magical powers. While trying to figure out the mysteries behind the people who are releasing these Megalo in the world, Ayumu meets a beautiful, black-haired girl by chance, and she only has eyes... For his butt.
Senō Natsuru is your normal, everyday high school student. However, he's been chosen to be a Kämpfer, who's objective consists on fighting other Kämpfer with either guns, swords or magic. However, there's catch—first, you can't chose if you're a Kämpfer or not, and second, you must have the body of a girl to use your powers.
Izumi was born in a family of celebrities. His father is a singer, his mother and artist, his older brother the lead vocalist for the popular band Crashers. Izumi himself, however, is just a nerdy college student. He loves the manga "Magical Girl Lala Lulu" and dreams of becoming a manga writer himself. One day he is roped into filming a commercial where he wears a dress. Another actor on the set, Ryoma Ichijo, mistakes him for a woman and falls in love at first sight. As it turns out, though, they met ten years in the past. And Ryoma feelings don't change when he finds out Izumi is a boy.
When Nanase Takeshi, a regular high school student, encounters Aiba Miu, a girl from a world of destruction, he winds up getting involved in a grand battle between mages. In order to save Miu, in order to save the world, and in order to change destiny. A real, modern-day magical action story begins now.
Tokiha Mai and her sickly younger brother, Takumi, have received a scholarship to attend the prestigious Fuuka Academy. On the way, the ferry they are travelling on becomes the site of a destructive battle between two girls wielding apparently supernatural powers. This is only the beginning of their troubles, as Mai learns that she herself possesses these powers - the powers of a HiME.
n Bakemonogatari, the story centers on Koyomi Araragi, a third-year high school student who has recently survived a vampire attack, and finds himself mixed up with all kinds of apparitions: gods, ghosts, myths, and spirits. However, in Nisemonogatari, we pick up right where we left off and follow Koyomi as the psychological twists delve deeper and deeper…
Haruhi is a poor tomboyish student at a school for the ultra-wealthy, able to attend because of a scholarship, and unable to even afford a uniform. One day, she stumbles across the decidedly peculiar but very popular Ouran Host Club. She tries to leave, but accidentally breaks a vase, and unable to pay for it, she's told that she'll have to stay and do odd jobs. That is, until they decide she would be more valuable as a club member. Not realizing she's female due to her appearance, they fix her up and give her a male uniform. She's an instant hit, so they decide to have her keep up the charade even after they find out the truth. Haruhi, being average almost to a fault, doesn't know what to make of the unconventional activities of the Host Club (or of the even more unconventional members), but having little choice, she plays along. Before long, real bonds are formed, friends made, and Haruhi finds herself accepted in a way she could never have been otherwise in this affluent school.
Kazuya Maeda is a high school student who has received a digital camera from his father. Motivated by this new hobby, he enters the school´s photography club. This gives him the opportunity to see several new perspectives towards the girls near him.
Chihiro Furuya, who loves zombies above all else, meets the sweet girl Rea Sanka by chance, and he ropes her into "resurrecting" his dead cat. But then Rea claims she actually has become a zombie, and asks him to take responsibility for it.
Minato Sahashi is extremely intelligent, yet due to his inability to cope under pressure has failed the college entrance exam twice. As a result he has been branded an idiot and loser by many. One day after talking to his yet again disappointed mother he comes into contact with a girl named Musubi who was under attack. The girl runs but takes him with her and soon finds that Minato, while unknown to him, is an Ashikabi, one of the mysterious set of masters that have the genetic trait that can become partners with some of the 108 cute girls, buxom women, and bishōnen called "Sekirei". The reason for the partnership allows the Sekirei to use all their power to win in the competition held by the mysterious MBI corporation.
In the remote Southern Cross island, a secret organization named The Glittering Crux plans to reactivate giant mobile suits that have been sealed for ages. Known as cybodies, they can only be controlled by pilots identified as star drivers. To unleash their full power, the mysterious group must brake the seals of the four shrine maidens that reside in the isle. Recently arrived outsider Takuto Tsunashi vows to stop the Glittering Crux in order to protect Wako Agemaki, girl who saved his life and is one of the four maidens. Wako is a lively young lady who has already been betrothed to Sugata Shindou, a rich and talented childhood friend. Despite being very close to Agemaki, Sugata quietly disapproves this engagement since it was forced on to them due to a family tradition. The melancholic couple becomes a radiant trio as Takuto becomes not only their friend, but protector of the seals since he is none other than the Galactic Pretty Boy, gifted star driver of Tauburn, the 22nd cybody.
"The fourth true ancestor" is a legendarily strong vampire that shouldn't exist. Accompanied by the 12 "gun-beasts," this phantom vampire is said to have appeared in Japan. In order to find and kill this "fourth true ancestor," the government and the Lion King Organization order the dispatch of attack mages called "sword-maidens." For some reason an apprentice named Yukina Himeragi was chosen for the task. Wielding the strongest spiritual spear, Yukina comes to the special demon district Itokami City. There she encounters Kojou Akatsuki and learns the true nature of the "fourth true ancestor."