Project Alicization, a top-secret government project run by Rath, a company affiliated with the Japan Self Defense Force (JSDF), was started to create the first highly adaptive, «Bottom-up AI». By using a 4th generation FullDive machine, called the Soul Translator (STL), Rath succeeded in copying the Fluctlights (souls) of twelve newborn babies, creating a «Soul Archetype», a non-developed Artificial Fluctlight that could be copied to create new Artificial Fluctlights, which would then need to be nurtured to mature into an individual. For this reason, a virtual world, codenamed «Underworld», was created using the free kernel version of the Cardinal System, The Seed, and then transferred into the STL mainframe via the Mnemonic Visuals feature of... more>> the STL.

Underworld is set in a past era, when science and philosophy were just being discovered, but instead of recreating a past era, limited terrain and certain customs were introduced so that the inhabitants of the world would form their own society. <<less

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The accompanying 4koma for Accel World.

When high-school student Souji Kushiki, an academic achiever and talented athlete from a well-to-do family, returns home from boarding school, he finds that his sisters Harumi, Youko, and Saki have changed. Their strangely clingy behavior borders on the inappropriate and bizarre, yet Souji just brushes off their odd behavior at first.... more>>

However, when Souji arrives at school the next day, he learns that, during the summer, one of the students in his class was pushed to his death in front of a subway train. And what's more, two other students were stabbed by an unknown culprit. Are the victims linked, and could Souji's sisters have anything to do with the murders? <<less

A year after Kazuto and Asuna escaped from Aincrad, the deadly setting of Sword Art Online, they're still coping with the aftermath as they try... more>> to recover from the harrowing experience. Meanwhile, there's a new VRMMO game sweeping the world's gamers--Gun Gale Online. When a mysterious player who calls himself "Death Gun" claims to be responsible for real-world deaths, Kazuto (aka Kirito) is recruited to enter the game to investigate, bringing an end to his hard-won peace! <<less

The virtual world of ALfheim Online might not be literally deadly, but there's still plenty of tough adventuring to be had. The trio of Liz,... more>> Silica, and Leafa set out on a quest for a magical ring but immediately run into monsters tougher than they expected. A certain black-clothed swordsman comes to their rescue--but it's not Kirito?! It seems the "game of death" has had lingering emotional effects on everyone, and even the survivors bear scars. But the trio have gotten through tough times before, and they're not gonna let a buffed boss stand between them and their goal! Even if they succeed in finishing the quest, though, will they be able to heal the mysterious sword-wielder's broken heart...? Join Liz, Silica, and Leafa on a new adventure that's all their own! <<less

Kazuto Kirigaya (aka Kirito) has survived the death game of Aincrad masterminded by Akihiko Kayaba, programmer of Sword Art Online, and made it back to... more>> the real world. Unfortunately, the same cannot be said for Asuna Yuuki (aka Asuna the Flash), the girl Kirito fell in love with in the game world and who has yet to awaken from her seemingly endless slumber. As his sister, Suguha, sadly looks on, Kazuto continues to visit Asuna in the hospital in the hope of finding answers... But one day, the answers suddenly find him in the form of a man who claims to be Asuna's fiancé?! With him, the man brings an in-game screenshot of someone who looks a lot like Asuna being held captive! Now Kirito must dive into an all-new VRMMORPG, ALfheim Online, to bring Asuna home!! <<less