The story of a young woman fighting for her survival in a real "urban jungle." Only 18 years old, Kuniko Hojo finds herself at the heart of the battle for humanity's future when she discovers that the government which rules Atlas intends to continue marginalising the less-privileged masses outside the tower - by force, if necessary.

Kisaragi Amatsuyu is invited out alone by the cool beauty upperclassman Cosmos and his childhood friend Himawari. Expecting to hear their confessions, he triumphantly goes to meet each of them in turn. But Cosmos and Himawari both instead confess to Amatsuyu that they like his friend. Amatsuyu fights this lonely battle, but there is another girl who is looking at him. She is a gloomy girl with glasses and braids. Amatsuyu finds that he hates her, because she's always turning her sharp tongue only on him and finding enjoyment in his troubles. But it turns out that she's the only one who actually does like him.

In 2046, many aspects of life are carried out on a virtual network. No matter how advanced the time becomes, however, bullying never disappears. Haruyuki is one of the bullied students. However, one day he is contacted by Kuroyukihime, the most famous person in the school. "Wouldn't you like to 'accelerate' and go further ahead, boy?" Haruyuki is introduced to the "Accel World" and decides to fight as Kuroyukihime's knight.

On the day Touma Kamijou and Index see Academy City's space elevator, Endymion in the distance, they meet a Level 0 girl with an amazing singing voice, Arisa Meigo. As the three enjoy their time together after school, magic-user Stiyl Magnus suddenly attacks them. His target: Arisa. Why would a girl from the science side be targeted by someone from the magic side, Touma wonders. In the chaos of Stiyl's attack, he tells Touma, Index and Arisa that she might cause a war between the magic side and the science side.

美国电音制作人Porter Robinson与A1联手打造的单曲动画「SHELTER」，故事以在未来的虚拟现实VR世界中醒来的17岁孤独少女·凛（CV：三泽纱千香）为主角，每天操作着平板创造属于自己的空想新世界，而现实世界中的凛却沉睡在小小的宇宙船中...