An urban legend describes monsters known as "bagurimono" lurk in dark corners of Akihabara, the paradise of anime. When Tamotsu Denkigai encounters one, he is almost killed but saved at the last moment by a girl named Matome Mayonaka, who repells the attack and later revives him.
Modern-day middle school girl Hideyoshi is mysteriously hurled into a world resembling the warring states period of Japanese history, only this time it's inhabited only by women. This world's Oda Nobunaga is gathering the legendary Crimson Armor so she can rule the world, and for some reason needs Hideyoshi's help to do it.
A team of four brave women -- Fighter (also the daughter of a legendary warrior who saved the country in the past), Paladin, Mage, and Darkelf -- accept the quest of saving the world from destruction. In order to achieve the goal they have to barter with villagers and fight against numerous monsters in their sexy and scantily-clad bikinis.
The story is set in Areishia Spirit Academy, where girls from noble families are educated to become spirit contractors. A boy named Kamito, a male spirit contractor whose existence was believed to be impossible, accidentally peeps on a girl named Clair while she was bathing and forms a contract with the spirit she set her sights on. In order to make up for his mistake, Kamito must become Clair's contracted spirit.
Sai Akuto aims to become part of his country's highest order of magicians and contribute to society as one of its clergy. On the day he is admitted into the Constan Magical Academy, his aptitude test predicts the following though: "Future Occupation... Devil King". Thus begins his difficult school life in which he is resented by the combative female class head, Hattori Junko, desired by a girl with mysterious powers, Soga Keena, and guarded by a beautiful female android, Korone.
Ash is a student at Ansalivan Dragon Academy, attended by children who have formed contracts with dragons. He possesses the "star mark," the sign of a contract, but since his partner hasn't been born yet, he seems insignificant. The awakening of the dragon he's raising inside his body is triggered by an incident, and it emerges in the form of a young girl.
Set in a slightly futuristic world where Earth has been invaded and is at war with aliens from another dimension called the Nova, the story follows the adventures of a Japanese boy named Kazuya Aoi who enrolls for training at a special school for genetically modified girls called Pandoras who battle the aliens, and their male partners, called Limiters, who use a special power called "freezing" to limit their opponent's mobility. The protagonist makes the acquaintance of an unusual older girl named Bridgette L. Satellizer who appears to be the most powerful Pandora in her class, but has not yet chosen a male partner to be her Limiter, and in spite of the warnings of all his friends, he decides to be her Limiter.
Since so few women are naturally born with the ability to become Pandoras and fight the extra dimensional aliens known as Nova, a program is approved by the Chevalier organization to allow any female to artificially become such a warrior. In order to test this new generation of E-Pandora, small groups of the highest ranked cadets from various Pandora academies around the globe are sent to Alaska in order to gauge the project's progress. Among those sent are Satellizer, Rana, and Kazuya since they display a skill level far above their position. It is not merely their combat prowess that is tested however, when the Evolution Pandora project does not go as expected.
Five years ago, while battling an alien force known as the "Mimesis," Dannar pilot Goh Saruwatari first met Anna Aoi. Today, on the day of their wedding, the ceremony is interrupted when the Mimesis strike again. As Goh struggles in his battle against the alien threat, Anna stumbles upon a top secret robot known as the "Neo-Okusaer" and uses it as a last-resort to save her fiancee. At that moment, Dannar and Neo-Okusaer merge to become the mighty robot "Godannar."
Isei finds new troubles about to enter into his life and two even sleeping in his bed. While looking at an old photo album of Isei's, Kiba sees a familiar sword being held by an old friend of Isei's, which reopen's old wounds. Meanwhile, Devils, Fallen Angels, and The Church's agents all clash to get their hands on, or just destroy, powerful weapons called Holy Swords. If that weren't enough, Isei's red dragon warns him that he senses his old rival the white dragon is drawing near.
The story follows Issei Hyōdō, a dim-witted, lecherous second-year high school student who is killed by a girl on his first date ever. Issei is reincarnated as a devil, and from that day forward, he serves as an underling of Riasu, a high-level devil who is also the prettiest girl on Issei's campus.
Dreaming of becoming a hero and vanquishing the Demon King, Raul Chaser enters the Hero Training Program in pursuit of his ambition. However, when the Demon King is defeated and peace returns to the world, the Hero Training Program is suspended indefinitely, making it impossible for anyone to become a hero.
Two years later, Raul reluctantly works at a small electronics store called Magic Shop Leon. Though the former hero-in-training is plagued by the mundanity of working in retail, everything changes with the arrival of a new hire. Appearing at first to be just a boy with good looks, "he" turns out to be a female demon by the name of Fino Bloodstone. She is not just any old demon either—Raul's new coworker is in fact the daughter of the late Demon King! Handed the responsibility of training this eccentric new employee, Raul soon finds his life becoming livelier than it ever was before.
Seven schools are constantly "at war" with each other, and the students within—both male and female—have become skilled fighters and constantly battle with rival schools. Their lives and fates are guided by strange jewels that contain the spirits and destinies of warriors from the Sangokushi period. One girl, Sonsaku Hakufu, has recently moved to Japan and is apparently destined to unite the schools as her counterpart united seven countries long ago. But, like all heroes, there is a darker side to her fate, and as always there is a constant struggle by those around her to break the chains of their own destinies and make their own lives.
Loosely based on the novel "Romance of the Three Kingdoms", modern day Japan sees a similar struggle for power between different rival schools with the three strongest being: Kyosho Academy led by Sousou Moutoku, Nanyo Academy by Sonsaku Hakufu, and Ryuubi Gentoku from Seito High School. Together these three tousei, each with their own mangatama, fight for the honour of becoming ikki tousen and fulfilling their fated destiny through battle and conquest.
Preparing for the battles to come, tournaments and to fight against new opponents from over the world, Hakufu is working to have enough money to make her dream true. But she doesn't consider that old and new allies and enemies will come to scene, and also being a weak leader to the eyes of her companions. A sister also appears. She doesn't even know her mom's past so better to start from the local stuff before attempting to go worldwide.
The main fighters are summoned to a tournament that involves the heads of all the schools. But some of the heads send their trust fighters in their place. They don't realize that the tournament is just the face of a conspiracy to take over the clans. Hakufu now has a disciple as crazy and skilled as her and due to her laziness the disciple ends on the tournament in the place of her master. Now they must prove that the destiny imposed by the souls of the fighters living in their own is not always an absolute law.
Touya Mochizuki was accidentally killed, and as an apology, God allows him to be reborn in a fantasy world and will grant him any one wish he desires. And so, Touya chooses to keep his smartphone in the next world. In his second chance at life, he befriends many important figures and comes across the world's secret. He inherits the legacy of an ancient civilization and travels around nonchalantly while possessing powers that rival this world's kings.
Commonly known as the "Dungeon," the city of Orario possesses a huge labyrinth in the underground. Its strange name attracts excitement, illusions of honor, and hopes of romance with a pretty girl. In this city of dreams and desires, new adventurer Bell Cranel has his fateful encounter with the tiny Goddess Hestia.
Thus begins the story of a boy striving to become the best adventurer and a lonely goddess searching for followers both hoping to reach their goals and perhaps have some romance on the side.
Asano begins work as the housekeeper for the old family of Shimazu, where he meets the ill-mannered, selfish, beautiful Sakaya. She is actually the 37th head of the Shimazu family in charge of sealing away monsters with Spirit Archery. Discovering that he has the powers of "true names" and "true eyes,"Asano becomes wrapped up in Sakaya's battle with the monsters as her assistant.
Kanokon's story revolves around Kouta Oyamada, a young first-year high school student who moves from the country to the city and thus transfers to Kunpo High School. On his first day at his new school, a beautiful second-year female student named Chizuru Minamoto asks him to meet her alone in the music room. When he arrives, she reveals that she is in fact a fox deity and from that day on the two hang out together. Nozomu is a first-year female student at Kouta's school, she is in fact a wolf deity and in love with Kouta, and a rival of Chizuru for Kouta's affections.
The series takes place four years after the events of Magical Girl Lyrical Nanoha StrikerS, during which magical girl Nanoha Takamachi rescued and adopted a young girl named Vivio, who is the reincarnation of the Sankt Kaiser, Olivie Segbrecht. After entering her fourth year of elementary school, Vivio is given her own intelligence device, Sacred Heart, and gains the power to transform using her adult Sankt Kaiser mode. She soon comes across a girl named Einhart Stratos who, similar to Vivio, is the descendant of another Sankt Kaiser ruler, Claus G.S. Ingvalt. As Einhart becomes determined to prove her fighting style is the strongest, Vivio and befriends Einhart and, together with her friends, enters a martial arts tournament where they fight against various magcial opponents and learn more about their past lives.
Takeru Ohyama, a young normal yet perverted minded guy, got accepted and now goes to a school that, unknown to him, was where combat and magic is used. On the first day, he meets again after three years: Haruko Amaya, his childhood friend, Inaho Kushiya, a girl who says she's his fiance, and Kodama Himegami, a blonde who wants to kill him. Finding out that there are many girls there that just don't like him, he is told that everyone there uses a special magic ability while using an item or weapon called a Maken. Later, he finds that no Maken is acceptable for him and doesn't know what to do, since in this school the students get into duels that showcase their magic and combat power, of which he seemingly has none.
Takeru continues his education at Tenbi Academy as part of the newly formed Security Committee. As a team with the other members they battle unscrupulous individuals who use their Maken for evil purposes. In the meantime, his libido and the conflicting romantic interests of the girls surrounding him complicate matters considerably.
The Krakozhia Dukedom and the Grania Republic are at war, and high school student Sōhei Yano wants no part of it. But when two Lieutenants show up in tanks at his door, his life becomes an exercise in dodging stray bullets!
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.
In the city of Gainos, Reina the vagrant warrior enters the competition of Queen's Blade to decide the new queen of the continent, but there are a number of obstacles in her way, each with their own reason for fighting.
Annelotte, a wandering knight, quickly become involved in an insurrection against the increasingly corrupt nobility and fanatical Church, as she and her growing band of fellow warriors fight to bring about justice and set right what has gone wrong.
In four years' time the competition that will decide who the next Queen shall be will start. The strongest warrior will continue to rule the country according to tradition and expand it. The contestants need only be older than 12 years. They need not be human, intelligent or even of that country. The rules for the tournament are simple: murder is allowed. Any weapon can be chosen. The winner is decided when one of the participants flees or can't move anymore. The event is broadcast by the court's magic teacher through a crystal sphere to the whole population to see and enjoy.
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.
The battle to find the supreme Sekirei continues. Still some of the fighters and their masters refuse to participate in the battle since losing it means to lose the Sekirei forever, and many of them actually care about their partners, while others just use them as tools. A storm is rising on the horizon, a bigger threat approaches the city and it's about to bring pain and suffering to those who love and care for their Sekireis.
Asuka and her 4 friends attend the secret Hanzo Academy, which trains young women in the martial art of Ninjutsu. However, the girls find their own skills are inadequate when faced with another group of girls from their rival, Hibi Girls Academy, which trains its Ninjas with the opposite moral philosophy.
Ryosuke Kaga is an ecchi high school boy attending Momozomo Academy. One day, he meets a girl standing alone in the rain. She is Lisara Restor, an elite Grim Reaper, who visited the human world in order to find "The Singular Man". Ryosuke makes a contract with Lisara and she sucks energy required for her activity in the human world from Ryosuke. The source of the energy is his perverted spirit. To recover the sexual desire, Ryosuke has no choice but to help Lisara's search.
The year is 1939 - it was then that the Neuroi appeared. Nobody knows where they came from or what their ultimate agenda is, but the fact remains that their attacks drove people out of their towns and cities. In order to take arms against them, humanity develops a new anti-Neuroi weapon called the "Striker Unit." Using the power of magic to fight against the monsters, this new device enhances and amplifies the power of female magic-wielders. To use this device, young witches from all over the world have been brought together to form an elite task force unit called the 501st Joint Fighter Wing, commonly known as the "Strike Witches."
Souchirou Nagi and Bob Makihara are two delinquents who arrive at Toudou Academy with the objective of ruling over the school with their strength. But on their first day, they encountered the Jyuukenbu, a martial arts group of the school. Members of the group, Maya Natsume, her sister Aya, and Masataka Takayanagi easily overpowered Souchirou and Bob. And what's more, due to what was assumed to be their "connections" with the Jyuukenbu, the two were attacked by members of the Enforcement Group, which oversees the martial arts groups of the school. Drawn into the personal conflicts between the Jyuukenbu and the Enforcement Group, Souchirou and Bob have no choice but to join up with Maya Natsume's group and to hone their skills to become even stronger.
Yukiteru (Yuki) Amano is a loner who never really interacts with people and prefers writing a diary on his cell phone, with his only companion being an imaginary friend named Deus Ex Machina, the God of Time and Space. However, Yuki soon learns that Deus is not a figment of his imagination but real when Deus makes him a participant in a battle royale with eleven others. Within this "Diary Game", the contestants are given special diaries that can predict the future, with each diary having unique features that gives it both advantages and disadvantages.
Basara Tojo met his two cute little sisters, Mio Naruse and Maria Naruse. The two sisters revealed themselves as a member of the demon clan and Basara as a member of hero clan, demon clan's enemy, and is not related by family. Mio is the future Demon Lord and since Mio's power is not fully awakened, Basara will protect her from the demons who are after the power she inherited from her deceased father, Demon Lord Wilbert.
The Yūki's residence is now full of people: in addition to Rito and Mikan Yūki, Lala, her twin sisters Nana and Momo, and Golden Darkness. Momo, who also falls for Rito, actively tries to create a harem for him. Meanwhile, a mysterious red hair girl named Mea Kurosaki enters Sainan High School with a hidden agenda.
Kasuga Arata lived a normal life together with his childhood friend, Hijiri Kasuga, in a small town. However, everything changed on the day of the Black Sun, and a magus (mage) appeared before him. The Black Sun caused the Breakdown Phenomenon which destroyed the town where he lives. Because of this, his normal life was artificially reconstructed by a grimoire that his childhood friend had left. The appearance of the magus led him to a new life in the Royal Biblia Academy and meeting the members of the Trinity Seven.