Demon Erwin resurgence
Although it may have seem like the chaos was restricted to just one area. But it wasn't. As a matter of fact, in every area of the forest where the kids had gone to, there were incidents occurring. In a particular part of the forest, the kids there had it worst than the others. Five men emerged with tails sticking out of their backs and a face like that of a pig's. Their skin appeared to be able to move and casually form spike projections on its own.
Erwin stood in the midst of the chaos that was occurring. His arms covered from shoulder to wrist with lightning. He had done all he could to protect his classmates who were all in his team given that there was no other group leader besides him from the green house. But as it turned out, the attackers were too much for him and at some point, it went from protecting the people around him to protecting himself.