A long time into the losing battle, a specific expert from the ancient gods and demi-gods of the human race became enlightened enough to discover the plot between these two entities.
So, he urged the last of these ancient gods and demi-gods of all races to begin to pray, not to win the losing battle, but to at least ensure the survival each of the species that were naively involved in the battle.
So, the good entity intervened in the battle and took each one of a male and a female sex of every of its descendants away from the battlefield. Meaning that for humans, it took one male and female each. Then, it did the same for plants, animals and every other living species.
The evil entity sent its minions in pursuit of the surviving good species, but despite all the killings and intense bloodthirst of these demons, the good entity still felt they were worthy of redemption and as a result couldn't bring itself to kill them.
