Since Ryan didn't have all the time in the world and the two groups of survivors won't mix well, he didn't hold back in training the second group's elemental resistances. Time was of the essence, after all. Still, when night came, the survivors had become resistant enough to endure the attacks of Ryan's slimes. So, he left some of them behind in order to make them help the survivors for quite a while.
Although a good part of Washington had been recovered from the monsters' hands, Ryan didn't slack off on the guard duty. His tracking skills needed some work, but he compensated in what he lacked with his concentration and with a good viewpoint of the area. Basically, Ryan created a forty meters town watchtower with his Earth Manipulation and stood at the top of it watching the area. From that place, he could see the succubus' dungeon and their movement, as well as he could watch both camps.
