Sword Art Online: Unital Ring

Orchestrated by genius scientist Akihiko Kayaba, the SAO Incident created a game you couldn't leave until you beat it. One where death in the game meant death in the real world... Kirito is a survivor of SAO who now spends his time playing the new VRMMORPG Alfheim Online with his old SAO friends, Asuna and Alice. But Kirito soon finds himself caught up in a mysterious game he never expected...

(Source: Yen Press)