User blog comment:B214/Volume 21 info & spoilers/@comment-3965848-20160726065224/@comment-30006382-20160919032355

Btw « Just as Ajuka said, the natural environment that Trihexa and the Evil Dragons had destroyed in the human world were repaired by relying on the power of god class beings. The lives which were lost…although difficult to deal with, it became a subject that the god-class beings would need to consider in the future. »

Though possible that they were talking about supernatural beings, it seems like they were talking about humans.