Out of nowhere, Shiroe finds himself in the city of Akihabara, inside the game "Elder Tale". Thirty thousand Japanese players have been locked inside the game! The world on the other side of the screen becomes reality, and amidst the chaos Shiroe finds his old friend Naotsugu. And as they relax at finding one another, they meet the powerful assassin "Akatsuki". Akatsuki has a request to make of Shiroe...

The Apocalypse has locked thirty thousand players inside the game, and no one knows what to do. The larger guilds are taking over Akihabara, and outside the city violent groups are Party Killing other players. A young female member of Marielle's "Crescent Moon Alliance" is trapped in Susukino, far to the north, and needs their help. Shiroe feels somewhat embarrassed, but makes a decision.

Shiroe confronts the 10 guild masters who represent Akihabara with the need to revitalize the town and bring peace and order. His calm and forceful manner brings them over, and the government of Akihabara, the "Round Table", is founded. After this work is done, his guild, "Log Horizon", joyously moves to their new location. That night, Nyanta fixes them his special curry.