Sword Art Online 21

In this thrilling continuation of the saga, a year has passed since Kirito and Asuna returned from the Underworld, now joined by Alice in her new physical form. Their peaceful existence is swiftly shattered when they are transported to an enigmatic survival MMO called Unital Ring, which merges all previous VRMMOs from the Seed program. Stripped of all equipment except his underwear, Kirito must navigate this dangerous new world and confront a mysterious VRMMOSVG while facing dire challenges.