From Shinnen: Hibiki and Tomoe Kazema are two sisters attending an ordinary high school, but unbeknown to their teachers and fellow students, they are members of a hidden group of ninjas. Their mission is to use their special powers to exterminate the akuma that are plaguing the world. This is made difficult by the fact that their enemies can possess corrupted humans who eventually turn into new akuma. Despite being faced with an ever growing army, the two are determined to prevail as "The two flowers that will slice through the darkness." The only question that remains is will they succeed against such overwhelming odds?
Tsubaki is her school's most proficient student, being polite and is absolutely good at everything and little by little people are hailing her to be the school's queen.... And she absolutely despises that. She quietly admits to herself that being a "perfect student" is not her real personality, but a clever ruse to become a more likable person. She is, however, still not able to interact normally with students and thus is dissatisfied; fact that prompts her to follow the advice of a magazine on finding happiness; the magazine states that by meeting your doppelganger, you will achieve long-lasting happiness. Determined, Tsubaki follows the instructions in the magazine and opens up a door that will allow her to meet her doppelganger.... ... And who she meets at the other side of the world is not who she was expecting.... well, it is someone who is strangely identical to her when it comes down to it, but it is also essentially different.
One day, Yuuri, a pretty high-school girl, is asked by a stranger to attend the funeral of Hirose Takaya saying he had really liked her. Who was this guy, and why did he like her?
The peaceful lives of many are taken away as a freak meteor shower destroys the Kanto area of Japan. However, the lives of the victims aren't lost, as they start to awaken one by one into a strange pre-historic world. A girl named Kyoka awakens into this world, and is attacked by a monster, however she is saved by Shinma Shingo, another monster. She joins Shinma and his companion as they search to find a way back home.
Being beautiful is never easy, especially if you're an eighteen year old boy like Yoon Da In who is constantly mistaken for a girl because of his delicate good looks. Da In is, in fact, anything but delicate. He is the ringleader of a group of tough kids in an all boy's school, and he's quick to beat the living daylights out of anyone who even hints that he resembles a girl. If that wasn't hard enough for a regular teenage guy to cope with, his life is about to take a shocking turn for the worse. When Da In stumbles upon strange happenings in the forest, he gets sucked into a world of vampire intrigue and sinister romance that he never knew existed. And he learns that there are worse things than being turned into a vampire: being turned into a girl?!
Momoko is a girl who was born into a witch family in which most of its female members possess magics. Yet they can only reveal their magical capability to "the one" i.e. their soul mate / spouse. The more magic she uses in front of strangers, the more parts of her body would become cat-ish (such as cat ears and whiskers), and if any stranger learns her true identity she would turn into a cat completely--like her mother! Having joined the magic club in her school, Momoko has used her ability too often that her cat ears pop out every once in a while so she must find "the one" as soon as possible, but her candidates have already become suspicious...
Gaon is a boy who turned into a vampire, having inherited the condition from his mother. He discovered that his one and only friend, Dong-yi, likes his older brother. Gaon loses all control when he smells the scent of blood. Aware of his unstability, he asked Dongyi for his help in order to safely graduate college, and in return promised to help him get closer to his brother. However, to the contrary of his plans, the possessive, cold-hearted Yohan came to take an interest in Dongyi, and the budding relationship between the two is slowly starting to get on Gaon's nerves.
While playing a ritual-like children's game called "Persona", students are knocked unconscious. While asleep, they encounter a man named Philemon who bestows several Personas upon them. When they wake up, the youths discover they can summon Personas.
Nana, an apathetic 24-year-old with nothing much in her life, suffers a car accident and wakes up in her 14-year-old junior high body. As she lives through each day, she starts to remember things she buried deep in her memory, and she can now not remember being involved with her older sister, whom she deeply admires, and her sister's first love, a senior at her school.
In the fall of 1966, tensions run high on the U.S. Air Force base in Japan on the eve of the Vietnam War. After a series of suspicious suicides in a nearby town, an additional threat has infiltrated the military compound - vampires. A covert team of government agents committed to the elimination of vampires dispatch a mysterious young woman named Saya who, in the guise of a schoolgirl, must uncover the origin of the demonic plague, eliminate the ghastly beasts and stop their reign of terror before time runs out. She is the last remaining original. taken from manga.com
Saiki Takaya, a guy who is easily misunderstood, one day finds a flask containing the succubus Lilim. She is very attractive but, she also has the tendency to drain the life force out of people. She surprises the life out of him (literally) when she kisses him unconscious. The girl, Lilim, turns out to be a succubus who gains energy by kissing guys. Lilim then flies off for more "food," but returns later, saying that Takaya's life-energy was the "tastiest." From then, Lilim is accepted by Takaya's parents as a live-in girlfriend of sorts, and Takaya's heart seems to start wavering towards this voluptuous devil.
From Fallen Syndicate: The duty of the Twelve Apostles is to seek out and destroy the vampires of this world. Bearing a grudge against vampires and the pure blood who created them, Gilles has successfully passed the first two parts of his exam to become one of the Twelve Apostles. For the third and final part of the exam, Gilles is assigned a partner named Luna and together they must travel to a nearby town and kill a vampire named Alan. Will he pass his exam and become an apostle? And who exactly is this girl named Luna?