Infinite Dendrogram Light Novel Softcover Volume 17

While on his quest in the Sauda Mountain Pass, Ray chances upon something surprising... In his hands, he now holds a ticket to "The Anniversary," a special event led by the control AI. Teaming up with Juliet and a surprise companion from his college days, Ray and his team agree to make their way to the location indicated on the invitation. Unfortunately for the group, their plans crumble when they see just what kind of event it really is: an all-out battle royale on an uninhabited island!