Paranormal photographer Kouhei stumbles into the arms of Hazuki, a vampire beauty who has waited for years to be freed from a forgotten castle. Unwilling to part with her unwitting hero, the petite vamp follows Kouhei home and starts causing trouble. But domestic disorder is the least of Kouhei’s problems. With dark forces gathering, he’s about to enter a world he can’t begin to comprehend!
Okano Makoto transferred to the school in his home town. There, he spent normal but happy school days with his sister, Hinata, a jokey classmate, Tachibana Tsutomu, Shikouin Kasumi, Tsutomu's childhood friend, and other friends. One day, after school, Makoto heard someone playing the harmonica. That melody made him feel something old, and it brought him to the roof of the school buildings. There, he met a girl in the dusk. It was Narukaze Minamo who turned her face to him with a smile. She was a childhood friend, but they had lived separately for years. Hiding their true thoughts, Makoto and his friends spend their lives in school. Their stories in a mysterious town are about to begin.
Hanaukyou Tarou, a high school student whose parents have died, is forced to move to Tokyo into his grandfather's residence. However he does not know that his grandfather is very rich and that he left the residence (with all the staff) to Tarou. The staff is composed only of professional maids and there are many of them in the house! Unfortunately Tarou is allergic to women and changes colour whenever they touch him (and because they were used to their previous master's habits they touch Tarou a lot!). But there is one maid named Mariel whose touch has an opposite effect on Tarou.
Ryoma Echizen is a young tennis prodigy who has won 4 consecutive tennis championships but who constantly lies in the shadow of his father, a former pro tennis player. He joins the Seishun Gakuen junior highschool, one of the best tennis schools in Japan, and there along with his teamates he learns to find his own type of tennis in an attempt to defeat his biggest obstacle of all: his father as well as himself.
On Christmas Eve, Hiro Hirono meets a girl named Miyako Miyamura as she chases a purse snatcher. Hiro later finds out that Miyako also goes to the same school as he does and they start hanging out together. This makes Hiro's childhood friend, Kei Shindō, feel left out, so she tries to compete with Miyako for Hiro's affection, creating a love triangle. Meanwhile, Renji Asō meets a girl named Chihiro Shindō at an abandoned train station. He soon learns that Chihiro suffers from a type of amnesia where her memory lasts for only 13 hours. He also discovers Chihiro's dream of writing a novel, but she has never been able to fulfill that dream due to her condition. Renji then decides to help her fulfill that dream.
At the beginning of 1900's, Sakura Shinguji received the mission of defending imperial capital Tokyo and came from Sendai to Tokyo. But, the post which she was assigned was the floral unit of the popular opera group at that time. She tries to become familiar with her new companions while she is perplexed as to what the relationship is between the fight and the opera group. But...
Umakai Shintaro, a Russian diplomat originally from Japan, defects and goes to Sapporo to teach at a girls academy. However, that girls academy is not typical—it is on board the Amanohara, and the five girls Shintaro teaches are known as the Lime Unit—girls with the ability to summon powerful beings to fight for them. Shintaro eventually becomes their teacher and general in battle, and so the six embark on a weird and excessively erotic journey, as Shintaro helps the girls overcome their weaknesses, become stronger for the final stand at Lushun, and also understand the motives of the "Russian Spiritual Corps" that assist the opponent, which, unfortunately, has one member whom Shintaro knew well...
Shu is a typical Japanese boy, but has an unbeatable, optimistic and determined attitude. However, when he sees a mysterious girl with strange eyes named Lala-Ru up on a smokestack, he is soon pulled into a strange desert world. Shu soon discovers the true terrors of war, which includes genocide, brutal torture, hunger, thirst, and child explotation. Now Shu is trying to save Lala-Ru, as well as his hard earned, and often relunctant, new friends from the insane dictator, Hamdo. Whether Shu can possibly accomplish saving those he cares about while still holding up to his values remains to be seen.
Japan may be brimming with mysterious monsters called ayakashi, but they have a special exorcist ninja force to counter the threat! Young exorcist ninja Matsuri spends his days fighting ayakashi to protect his childhood friend Suzu. But when an ayakashi cat named Shirogane shows up, things get turned upside down!
Commander Sugata discovered the existence of the Royal Underground Empire Tube, a malignant force that desires to dominate the land, which is based underneath Japan. He recruits five young people, each one specializing in a style of martial arts, and teaches them in the ways of the mystical "Aura Power" energy. A year after he recruited and trained the Maskmen, Tube is ready to strike.
The curtain rises on Sarasa Watanabe, a starry-eyed 5'10" student who hopes to perform as a male lead role in the all-female Kouka Acting Troupe. She forms a friendship with her new roommate, a former idol. Together, they’re in for the role of a lifetime.
After disappearing from the underworld, the legendary yakuza known as the "Immortal Dragon" resurfaces — as a fiercely devoted stay-at-home husband.
High-school girl Yuri suddenly finds herself on the rooftop of a high-rise building. She's trapped in a bizarre world surrounded by skyscrapers, where a masked man cracked open a man's head with an axe before her eyes. Finding a way to survive this bizarre world, find her beloved brother, and escape becomes her top priority, but she is beset by danger not just from the mysterious Masks, which possess both inhuman strength and cruelty, but other survivors turned cruel or desparate by the insanity of the high-rise world.
Yukari Morita’s journey to find her missing father takes her to the far off Solomon Islands, where she is offered a deal by the Solomon Space Associations’ director. They will help her search, but in exchange, she must become an astronaut.
A peaceful boatman once known as the Black Samurai is pulled back into conflict when he takes a little girl with mysterious powers under his wing.
A proud bath architect in ancient Rome starts randomly surfacing in present-day Japan, where he's inspired by the many bathing innovations he finds.
Mari Wakatake has been living with her Grandmother for the past 5 years after a tragedy caused the loss of her home, friends and family, as well as her memories. Fearing for her future, her Grandmother admits her into Kaihou Academy, for her to make friends, instead of home studying. Although reluctant to go, she does and meets Hagino Sekonji. At first appearance, this girl appears like a normal student but inside her lies a deep secret that relates to the tragedy of 5 years ago.
Set in a future where the sky has been changed into a giant mirror, two teenage children are caught in a struggle between a group of super-powered beings and a mysterious woman's team of children aiming to stop them.
Baba Lamune, a 4th grader, is pulled into another world after he beats a video game he bought from a street peddler. He arrives in Hara-Hara to discover he's destined to save the world from the evil Don Harumage, with the help of the Guardian Knights, free-thinking robots. The writing is heavy with word-play; even the characters are named after popular Japanese drinks. It has 4 sequels, including 3 OVA, named "[NG or VS] Knight Lamune & 40"
October 1941, as the second World War threatens to destroy the civilized world, an unforeseen complication suddenly occurs. An alien invasion! Despite the sudden appearance of these extraterrestrial aggressors, the Axis and Allies continue their destructive conflict. Only the Kishin Corps and their giant Geo-Armor Robots (a.k.a.: Kishin), developed from a captured alien robot soldier, stand between the Earth and total annihilation! A teenager, named Taishi, suddenly finds himself at the center of a struggle over a mysterious black attaché case entrusted to him by his father, Professor Tokamura. The case contains the controlling mechanism for one of the giant Geo-Armor Robots, and the Japanese Kanto Army, the alien invaders, and the Kishin Corps all want to recover the device! Between the spies, the armies, the aliens, and the Giant Robots, Taishi is in for an epic adventure—if he can survive it!