They are back

"I get the feeling that swinging around a chain doesn't suit you," Femradiel said.

                  After succeeding in sealing all the zombies that attacked them, Femradiel said that. In any case, the chain got pretty powerful after the souls of 123 humans were put there. Just as they expected, Thanatos stopped sending zombies after them once he realized what Ryan was planning. Since he arrived in that depressing world for the first time, Ryan felt like smiling while imagining Thanatos worried face.

"Did the presence that you felt earlier decreased in size?" Ryan asked.

"No," Femradiel replied.