Sword Art Online. Volume 21. Unital Ring I

One month has passed since Kirito and Asuna returned from the Underworld and Alice, who received a physical body, appeared in their lives. But their calm existence unexpectedly comes to an end.
- The first level...
- I also have the first level!
All three of them get caught in the mysterious game Unital Ring - a network survival simulator created through the merger of VRMMOs that operated on the "Seed" platform. Kirito almost immediately loses all his equipment and is left literally in just his underwear. But even in a harsh world full of deadly dangers in VRMMOSVG, he challenges this mysterious game!