Sword Art Online: Battle of the Sequences

In 2022, the world's first full-dive dedicated equipment "NERvGear" was developed by the genius programmer Kayaba Akihiko. This revolutionary machine brings endless possibilities to the VR (virtual reality) world. Four years have passed since then. . . . . In order to compete with the "AmuSphere" (the second-generation civilian full-dive machine), the successor VR machine of "NERvGear" released a next-generation wearable device "Augma". It replaced the full-dive function and is a state-of-the-art model that maximizes the AR (augmented reality) function. Since "Augma" can be used safely and conveniently even in the awakened state, it spread among players in an instant. This killer content is called "Ordinal Scale Sequence Battle (OS)" and is an ARMMO RPG dedicated to "Augma". Asuna and her friends will play this game, and Kirito is ready to join the battle. . . .