Undefeated Bahamut Chronicle

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 she is one of the "Spirits" who are the real cause of the spacequakes that occur when they manifest themselves in the world. He 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.

One day, humanity was invaded by another world. Having experienced that battle, known as Other World War I, humanity moved to marine floats, built for emergency evacuation purposes, as soon as Other World War II began. It's around that time that Kizuna Hida is summoned by his elder sister and visits the Strategic Defense Academy Ataraxia where he meets Aine Chidorigafuchi, a girl who uses Heart Hybrid Gear Zeros to fight the otherworldly enemies. He has a tough time dealing with her, but when her Gear runs out of energy, the only way to get it back in action is to do something lewd to her!

Raised by his uncle after his parents’ deaths, Akiharu enrolls at a mostly female academy that specializes in training maids and butlers for high society placements.

A mysterious life form known as Savage is attacking the Earth, and there is only one weapon that can counter it: the Hundred. To become a Slayer, a master of military arts able to wield a Hundred, Kisaragi Hayato enrols in the marine academy city ship Little Garden. However, Hayato feels a strange yet familiar sense of incongruity towards Emile Crossford, his room-mate who somehow knows him from somewhere.

Toujou Basara is a high school student whose father has suddenly just remarried. His father then departs overseas leaving Basara with two new beautiful step-sisters. Little does he know, his new sisters, Mio and Maria are actually the new Demon Lord and a succubus!? Almost trapped into a life of servitude, Basara forms a reverse contract by accident and ends up becoming Mio's master! Hijinks ensue as Basara finds himself in one ecchi situation after another. However, Mio's life is in danger as she is pursued by demons and heroes!

Rito Yuuki is unlucky when it comes to love — no matter how hard he tries to confess to his crush, his efforts end in failure. After another day’s confession goes down the drain, Rito spends his night sulking in his bathtub. But when a naked girl with a pointed tail teleports into the tub with him, it seems like Rito’s luck is finally looking up! His fortune doesn’t last long when he finds himself accidentally engaged to the buxom beauty who is none other than the princess of the planet Deviluke!

Natsuru is selected to be a Kampfer, a mystical fighter who has to fight other Kampfers. The catch is that all Kampfers are female, and Natsuru is male... at least he was! Worse, Natusru's best friend turns out to have a crush on his new body.

Girls from all over the world gather at IS Academy to learn how to become IS pilots. However, since Ichika can somehow pilot the IS even though he is male, he was forced to attend IS Academy as the only male in this school.

Invertia was a meteor storm that caused an unprecedented disaster during the 20th century. Because of this disaster, numerous cities around the world were destroyed. However, within the meteor, an unknown element called mana was discovered. It allowed human technology to make rapid strides giving rise to a new species of super-powered humans, the Star Pulse Generation (Genestella). The Festas (Star Warrior Festivals) host battles between Genestella at a city of six academies called “Rikka,” also commonly known as “Asterisk.” Scholarship student Ayato Amagiri transferred into Seidoukan Academy in order to fulfill his own wish, swearing he too will fight in this city.

High school student Hiiragi Seiichi is bullied by his classmates for being a "loser." One day, his entire school is suddenly transported to a video game-like world of swords and sorcery. When he accidentally eats "the Fruit of Evolution," his life as a successful "winner" begins.

When Mafuyu Oribe and her adopted sister Tomo rescue a strange wounded man, they have no idea what they’re getting involved with or what the consequences will be. Alexander Nikolaevith Hell is an Iron Qwaser, one of many opposing factions of super-warriors.

For 30 years, thousands have traveled to other worlds. The few that return keep the powers they had in those worlds. Akatsuki Ousawa returns from the world of Alayzard with the defeated Demon King's daughter, Miu. Miu pretends to be Akatsuki's sister to hide her true identity. They join Babel, a school for inter-dimensional travelers, and struggle against the student council to uncover the truth behind the school.