Maybe the Nu have nothing to do with the Entity. There is zero evidence in the game to suggest that they have anything to do with either the Entity or Lavos. Finding out their origin is like trying to find out the origin of the Yakra, not really possible. I doubt that they are agents of the planet, they are not found at all in Chrono Cross. You would think that a threat as great as the Time Devourer would require the "agents" to help save the day. I also have a question on the side if anyone would care to answer it: If Lavos (or Time Devourer) controls the Dragon God, why does she want to destroy humankind? I thought Lavos wanted humans to outlast the reptites, yet there is Dinopolis... also why is the planet having humans work for it, it seems as though giving humans that much power would make things worse for the planet, life sure as hell didnt get better after CT so what is the Entity doing??
As far as humans doing the Entity's work: See
this topic. Namely my second and last posts, which confront the necessity of humans in particular. A few other posters discuss it somewhat, too.
But in reality, when Schala fuses with Lavos to create the Time Devourer, the result is
not anything like either of them. The result is a hungry monster whose only whim is to destroy everything. Lavos's desires for humankind are no longer in question, and obviously, neither are Schala's.
Also mentioned in that topic is that the Entity really doesn't have any place in Chrono Cross. Its only thoughts were to save itself (given that you accept the Gaia Theory), and since it had done that with Crono, it was through. The only real act it had in Cross was to pull Dinopolis through time to counteract Chronopolis's displacement. Other than that, well, it must be oblivious to the idea that if the Time Devourer succeeds, it will be destroyed anyway. The only real "Entities" present in Cross are Schala and Belthasar. You ought to be able to pick that up from the topic.
