This series is a retelling of the SAO Aincrad Arc starting from a day or two before the clearing of the First Floor Boss, and continuing onwards. The first chapter was included in the Anime as Episode 2. Note: Please be advised that the side stories in this series have some changes from the original Light Novel versions of the Sword Art Online main story.

Opus is Kon's metafictional tale of Chikara Nagai, a creator under pressure to finish his latest graphic novel, Resonance, who finds that the harshest critic of the shock ending he's got planned is the character who'll have to die in it! Nagai's strengths and weaknesses as a creator are tested beyond their limits as his present and his past, and the worlds of the manga and of reality, become the levels of a maze he may never escape... let alone get a chance to resolve the story!

From Viz:

Out of nowhere, a Japanese elementary school is transported out of the world they know, and into a nightmarish wasteland. Have they gone to another planet, or is this toxic world actually a vision of Earth's future? Soon, the students and teachers must struggle to survive in impossible conditions, besieged by terrifying creatures and beset by madness. Part Lord of the Flies, part post-apocalyptic science fiction, The Drifting Classroom (1972-1974) is a classic can't-put-down manga series. It was adapted into a Japanese live-action movie (1987).

It was awarded the 20th Shogakukan Manga Award in 1975.

April 2014, Japan. It all starts with the High Energy Accelerator Research Organization that’s looking into the yet-unknown Exotic Star particle. A great war begins between two factions: the Enlightened, and the Resistance!

One day while walking home from her job, Kurumi Akino finds a wounded young man, and saves his life. He mysteriously disappears after that, and leaves only the name “Hakuron”. Next thing she knows she’s been kidnapped from her school, and is on a private jet with that man, heading to China. It turns out she saved the life of the most infamous mobster in Hong Kong, and he wants her to stay with him.

Stand Alone Complex takes place in the year 2030, in the fictional Japanese city of New Port. The story follows the members of Public Security Section 9, a special-operations task-force made up of former military officers and police detectives. The manga presents individual cases that Section 9 investigates, along with an ongoing, more serious investigation into the serial killer and hacker known only as “The Laughing Man.”

Alexia Tarabotti is laboring under a great many social tribulations. First, she has no soul. Second, she’s a spinster whose father is both Italian and dead. Third, she was rudely attacked by a vampire, a terrible breach of social etiquette. Where to go from there? From bad to worse apparently, for the appalling Lord Maccon (loud, messy, gorgeous, and werewolf) is sent by Queen Victoria to investigate the incident, and he is none too happy to see Alexia at the scene. With unexpected vampires appearing and expected vampires disappearing, everyone seems to believe Alexia responsible, given her soulless ability to negate supernatural powers. Can Alexia uncover what is happening before she becomes the next victim?

A bloodstained man stands in front of a terrified girl. He proclaims his love for her and makes this ominous declaration: A year from now, she will either die alone or will be with him forever. Now, rumors abound about the cursed girl that causes any boy who proclaims his love for her to die. Join us to discover the mysteries of Metronome.

A, B, AB, O...

These are the common blood types with which most people are familiar, but there are rarer strains in the world, "hidden blood types." Individuals possessing these are called "strangebloods," and they are imbues with incredible abilities by the very blood flowing through their veins.

But what happens when all of these disparate blood types come together? The result is rumored to be the legendary "Blood of Wisdom" which bestows god-like power. Little surprise, then, that more than a few unsavory characters are actively pursuing this awesome power. Can Chiaki Kaminaga and his friend Kaguya Daidouji survive this blood hunt...?

Keyman is the resident hero of Lockville City, a place inhabited by both humans and animal people. In the years since his debut as a hero, crime has decreased significantly, which does not look all that great for the local police force. But one day, after he catches yet another group of criminals, Keyman is mysteriously murdered. Detective Alex and his police force are investigating the murder, and one of their major clues is the words "Dr. Necro," which were carved onto Keyman's body after his death. Their case gets even stranger when Alex unexpectedly meets "Dr. Necro," who appears to be a young girl, in a bar. What monster could be behind the murder of Keyman, and what does the childlike Dr. Necro have to do with it all?

When she was 11-years-old, a young girl met a traveler named Kino. He came to stay at her family’s hotel, where the two exchanged stories of their lives as Kino repaired his motorrad, Hermes. In the young girl’s country, when children turned 12, they got a brain operation that turned them into “adults”.

In a cruel twist of fate, Kino dies saving the young girl from the demented “adults,” and his motorrad whisks her away and out of the country. Thus, she decides to inherit Kino’s name, and his legacy of traveling around the world, staying no more than 3 days at a time, and learning about other people’s lives in a grand, beautiful adventure.

As Bai Xi investigates a dark organisation called “The Animals”, wishing to take revenge upon his mother’s murderer, he finds himself stumbling upon more than what he bargained for. Superhumans, human experiments, and special drugs are all within arms reach. What are they up to, and where does his sister fit into all of this? Also, did we mention he has super regenerative abilities!

The case files of the detectives at the Shinjuku Police Station paint an unapologetic picture of the worst of human nature, the horrors of everyday life, and the people that are the products of them. In this society, abused children grow up twisted, and traumatized victims turn to violence for revenge.

The line between victim and criminal is often blurred when even the worst offenders are those society once failed to save. Left behind in the passing of the years, former detective Iida Kyouya must once more pick up his gun.

AD 2199, the “degration” virus breaks out, hence biological gene becomes indefinite, species started merging, resulting in the birth of unexpected new living creatures; humans who has fused with other living creatures are called “hybrids”. The collapse of civilisation, the world plunges in chaos; some humans received inconceivable powers, others would rather die, and there are some who hunt for the rare gene, making a living out of finding solution for the cause of the hybrid incident – they are known as The Hunter G.

From the mind of Noboru Miyama comes Godo! An adventure set in a mysterious and weird world with influences from Norse mythology. "Put an end to this cursed world! That is your fate!". An alchemist by the name of Godo whose father was charged with theft must seek revenge for his father and his own freedom as he participates in the fighting festival known as Valhalla.

When a person dies, their soul leaves the body in the form of a butterfly and the body itself rots away quickly after.

Ono lost his entire family in a plane crash fourteen years ago. But since this tragedy, the body of Senri, his twin sister, is still intact while the butterfly that contains his soul was stolen by a mysterious individual during the accident, leaving her unconscious and in a vegetative state.

In order to get back his sister's butterfly, Ono joins the famous "Death Bureau", a state agency specialized in the capture, conservation and management of the butterflies before they disappear for good 49 days after their host death.

Using the butterflies, the family of the deceased can come in contact with their loved ones in the form of a 3D hologram.

Ouka Namae is the boy who lacks a lot of '"emotions." When he's hit or being scolded, he will not even lift an eyebrow. He cannot obtain the real feelings of being alive. That boy has to do something related to an "important person," which is the only method to obtain his "emotions"... This is the story of how Ouka Namae will obtain his "emotions." Once the ending draws near, will it result in a happy ending? Or will it be...

A psychic who doesn't believe in ghosts met a girl who can see ghosts, what will happen?

A female ghost meets a 19 year old boy who develops a slight obsession with her.