A mysterious gate to another world is opened by team LPFM in the desert wastelands, after defeating a boss which leads to an ancient army with spears, and shields invading the wastelands.

After defeating Kayaba, the players expected to be logged out and return to their normal lives. They were wrong. How would the citizens of Aincrad survive in this strange new world. How will the Earthlings react to the existence of another world. What path will Aincrad and her people take in these times of turmoil.

Tiba-tiba saja sebuah gerbang menghubungkan dunia virtual dan nyata. Sedangkan Kirito yang saat itu baru saja selesai melakukan Grand Quest mendapati kecelakaan. Sehingga akhirnya dia terlempar kedunia asing.