Finally caught up with this story after 1 years without it, I stopped read right when stuff was getting serious...it seems like everyone is too dumb to stop the future paradox from happening, the only outliers are Nitta and Hina...which makes sense (and Anzu is just a victim in all of this).
It all forshadows to Hitomi being the reluctant final boss...which is great even if I always thought they had gone too far with her schtick (at least they committed to it until the very end).
P.S.: We still don’t understand the point of sending them back in time or what part the little boy actually plays in this future war (aside from futely trying to stop it from happening)