Sword Art Online: Phantom Bullet #4

Plot

In order to uncover Death Gun's true identity, Kiritoprepares to enter the Bullet of Bullets tournament! As Death Gun's newesttarget, Sinon stands side-by-side with Kirito, ready to overcome her past traumaby defeating their common foe. At long last, it's time for Kirito's showdownagainst Death Gun! Why and how did all those players die, and who really killedthem? Seeking answers, Kirito steels himself and prepares for battle in thisthrilling conclusion to the series!