The story is set a couple of years after the events of Sword Art Online, where Kazuto "Kirito" Kirigaya and his sister Suguha meet up with Asuna Yuuki, Rika "Lisbeth" Shinozaki, and Keiko "Silica" Ayano at the SAO Survivor School. Kirito then attends emergency counseling, while the girls go for a sw...

Source: MyAnimeList