Sword Art Online Alternative Gun Gale Online, Vol. 5 (light novel)

As the third Squad Jambegins to wind down, the "special rule" takes effect! "Your former comrades arenow your enemies." Team LPFM, one of the favorites to win the competition, hasbeen torn apart, and Pitohui couldn't be more delighted! Not looking forward toher rematch with the trigger-happy Pito, Llenn and her new teammates areescorted to the mysterious UNKNOWN area at the center of the sinking map,surrounded by a thick fog. As bullets of betrayal fly past former allies, thefog finally clears to reveal...a luxury cruise ship?!