Kaiba (2008)

Miaka, a junior high school student in Tokyo, has normal problems: fights with her mom, entrance exams, and deciding where she's going to go eat with her friends. But when she finds a mysterious book in the library, her life is changed forever when she and her best friend are transported inside!

Located in the center of a remote island, the Abyss is the last unexplored region, a huge and treacherous fathomless hole inhabited by strange creatures where only the bravest adventurers descend in search of ancient relics. In the upper levels of the Abyss, Riko, a girl who dreams of becoming an explorer, stumbles upon a mysterious little boy.

Himari’s 16th birthday will be one she never forgets. Unexpectedly, she receives a will detailing her inheritance of a mysterious estate: the Momochi House. She arrives only to discover that the home was built on the cusp between the human world and the spiritual realm. There, she encounters Yukari, Ise, and a peculiar boy named Aoi, who seems to be concealing a shadowy secret.

Four miserable members of a dysfunctional household have no idea that they've formed a happy family unit in an immersive VR game — with each other.

Shy Natsu awakens as part of a group chosen to ensure the survival of humanity. Together, they have to survive on a changed Earth.

Lain—driven by the abrupt suicide of a classmate—logs on to the Wired and promptly loses herself in a twisted mass of hallucinations, memories, and interconnected-psyches.

In a dystopia riddled with corruption and cybernetic implants, a talented but reckless street kid strives to become a mercenary outlaw — an edgerunner.

Sakaido is a genius detective who can track down any criminal. But when his daughter is murdered, revenge lands him on the other side of the law. Now in prison, he helps the police solve mysteries using a system that invades a person’s identity. Little by little, a trail of blood forms, and it all leads back to his daughter’s murderer.

In a distant future, Tetsuro is a human boy who wants his body replaced with a robotic one. This is possible, but to do so he has to reach the Immortal Planet onboard the space train Galaxy Express 999. Maetel, a beautiful and mysterious blonde woman dressed in Russian style, joins him in the long journey through space. Every episode sees our heroes arriving in a new planet's space train station.

Ai, a young girl with shut-in tendencies, who tries not to interact with others. She keeps one of her eyes hidden behind her hair. One day, she happens to stop by a deserted arcade, where she meets "Aka." Spinning the gacha at their urging, she acquires a "Wonder Egg," and from that moment, her fate begins to change...

The Man-Killer Virus: a lethal disease that has eradicated 99.9% of the world's male population. Mizuhara Reito has been in cryogenic sleep for the past five years, leaving behind Tachibana Erisa, the girl of his dreams. When Reito awakens from the deep freeze, he emerges into a sex-crazed new world where he himself is the planet's most precious resource. Reito and four other male studs are given lives of luxury and one simple mission: repopulate the world by impregnating as many women as possible! All Reito wants, however, is to find his beloved Erisa who went missing three years ago. Can Reito resist temptation and find his one true love?

Arima Takuya is a young student whose father, a historian who has conducted various researches, disappeared recently. During a summer vacation Takuya receives a peculiar package from his missing father, along with a letter containing information about the existence of various parallel worlds. At first Takuya doesn't take it seriously, but soon he realizes that he possesses a device that allows him to travel to alternate dimensions. Is his father alive, after all? If so, where is he?

Humans that have been physically altered and turned into dangerous weapons are known as the Extended. Juuzou Inui awakens as one of these weapons — with amnesia. But his job as an agent investigating the Extended leads to a mysterious child with Extended ties showing up at his office. Now Inui must keep the child away from street gangs and the megacorporation Berühren, and it won't be easy.

In the near future, a sudden and unexplained sea rise has left much of human civilization underwater. Ikaruga Natsuki, a boy who lost his mother and one of his legs in an accident some years earlier, returns disillusioned from a harsh life in the big city to find his old countryside home half-swallowed by the sea. Left without a family, all he has to his name is the ship and submarine left to him by his oceanologist grandmother, and her debts. His only hope to restore the dreams for the future that he has lost is to take up an opportunity presented to him by the suspicious debt collector Catherine. They set sail to search the sunken ruins of his grandmother's laboratory in order to find a treasure rumor says she left there. But what they find is not riches or jewels; it is a strange girl lying asleep in a coffin at the bottom of the sea, Atri. Atri is a robot, but her appearance and her wealth of emotions would fool anyone into thinking she's a living, breathing human being.

As the result of a childhood injury, Shiki Tohno can see the lines of energy that bind all things together and by severing those lines he can destroy almost anything! Only a special pair of glasses that mute his extraordinary perceptions have kept him sane, but his attempts at living a “normal” life come to a shocking end when he is approached by a strange and dangerous woman. Now, Shiki is fighting both for his life and to unravel the secrets of his own past.

Thousands of years after Earth’s atmosphere was destroyed, adventure blooms in the strangest of places. The domed city of Romdo is supposed to be perfect, but Re-l Mayer, a young female inspector from the Civilian Intelligence Office, knows better. In this place where humans and robots coexist, she receives a strange message: something is awakening!

On August 16, midway through a seemingly endless summer vacation, middle school third-year student Nagara, transfer student Nozomi, classmates Mizuho, Asakaze and their entire class are suddenly transported from their tranquil lives to a school adrift in an alternate dimension. They must survive with the super powers that have awakened within them.

Creatures known as Shokujinki have been secretly living alongside humans for hundreds of years. Though they may look like humans, Shokujinki are able to transform into uncontrollable beasts with gigantic claws and consume humans to survive. The equally secretive Kifuuken dojo specializes in killing Shokujinki by cutting off their arms, and is the only force preventing unchecked Shokujinki domination. Toshihiko Momota, the son of the leader of the Kifuuken, is instantly charmed by a mysterious woman named Yuka Kamitsuki. Their relationship is complicated, however, because unbeknownst to them both, Yuka is a Shokujinki and Toshihiko is sworn to kill her. Meanwhile, the Kifuuken is having a crisis of confidence as Toshihiko's brother Kazuma pushes against tradition and tries to modernize the Kifuuken. As emotions are strained and the secrets of both the past and present are revealed, who will live, and who will be eaten?