In the aftermath of the disastrous Holy Light Festival, the ostensibly defeated DragonLord Veira appears before Dark Lord Leonis and demands he take her on a tour of thecity! Riselia follows after the two in secret, only to find them engaged in a poolsidecompetition. However, the eighteenth platoon's carefree escapades come to an abruptend when they're sent on a mission to Necrozoa. There they discover Zemein, one ofLeonis's old servants, plotting to revive the Undead Dark Lord!