Katsu Kaizou is a very gullible, 17-year-old high school student and a believer in science fiction, aliens, ghosts, UFOs, conspiracies, etc. He thinks that everything going on around him is the result of some sort of alien plot to take over the world. Each story is pretty much self-contained and is completely bizarre. Kaizou joins the school's science club, makes new friends, and ends up coming in contact with all sorts of strange things like log people, deadly sushi, pee-blades, scary infections, robot invasions, ghosts, living dolls, and more!

In search for Araki Genzo, George Kodama finds himself in the small town of Kimujuku. George quickly realizes that he is unwelcome and is warned to leave as soon as possible. With two rival syndicates roaming the streets and a dark violent past, the town of Kimujuku isn't what it appears to be. George challenges the town of Kimujuku in order to reveal the towns dark hidden past and discover the truth.

Vampires—supernatural beings that feed on the life essence of the unsuspecting at night—have been around for centuries. However, high schooler Karin Maaka is unusual, even among her own kind. Unlike her vampire family, ever since she was a child, Karin has suffered from polycythemia: a rare disorder which causes her to periodically produce excessive amounts of blood. And the more blood she produces, the more anemic and lightheaded she gets, ultimately leading to frequent nosebleeds. Her only solution? Force her excess blood onto random strangers, which surprisingly causes these "victims" to become livelier and happier than before. With her siblings—Anju, her reserved yet affectionate younger sister, and Ren, her womanizing elder brother—helping her abilities remain a secret by altering the affected humans' memories, no one is the wiser. That is, until Karin's newly transferred classmate, Kenta Usui, finds her behavior suspicious. And to make matters even more complicated, Karin feels her blood reacting unusually to Kenta's presence.

"Beatrice". It is a mysterious power that responds to people’s will and realize all of them. Tokyo Beatrice University Attached High School is the only school that teaches Beatrice called "magic appears in the real world". Yoshimura Mamoru is a high school boy who was saved by Beatrice miraculously when he was a child. At the first day of the school, he meets a girl under the cherry trees on his way to the school. She orders him to go out with her. Her name is Takasu Ayako. She is in the second grade and one year older than him. She is a director of student committee of discipline. Also, she is a granddaughter of a big-name politician, very beautiful, and a genius Beatrician who can even shoot a satellite down. She is called Witch Beatrice or Death Angel in Beatrice, but in fact, she is a pure-hearted girl.