@Demize Technically "This world will end" doesn't even mean something bad will happen. Sure, the demon king went from "Kill Humans" to "Destroy the world" due to his anger, the forbidden spells, and the first demon kings soul, but it's still possible that could be changed. The whole world thing could also be taken to mean, this world will be destroyed or restarted or irreversibly change or something else entirely. If you want someone to think something that's wrong without actually saying it, you just vaguely imply it, which is slightly sketchy I guess, but only if the Goddess can see the future 100% as well as if or when or how it changes, otherwise it would just be her not being sure of what will happen.