Dealing With The Source Of The Monster Outbreak

"This will be a bit tricky," Thirteen muttered as he gazed down on the countless bodies of Ant Type Monsters left outside the Randall Stronghold's defensive walls.

The Wanderers who had been sent here with Diana had all received a survival-type mission, in which they had to defend against swarms of monsters for thirty days that pushed them to their limits. 

There were times when they thought that they could no longer make it, but Diana, who stood at the forefront of every defensive war, perfectly served as a beacon of light, raising everyone's morale in battle.

But with the current state of the Fortress, it was obvious that it might not be able to endure one more attack from the Monster Tide that might come in three days.

This was also why the Crusader and her comrades were desperate to get some reinforcements promised to be the reward of their mission.