Also I think I am definitely of the opinion that the evil route and the good route are connected. It seems like what happens in what route influences the other somewhat. The part after the Crescent fight is a clear example in this since in the evil route you see what happens right before the "main" timeline Melia gets swapped with the other Melia, while in the good route you see the aftermath. I also suspect that the evil route gave the red chain to the good route.
At the end of the evil route the MC says that I gain nothing from destroying the world and that they gain everything, which makes me suspect that the two routes are working together, by destroying one timeline, they can have the strength to save another or something like that?