The last demon and angel

Demons and angels have been enemies for centuries but they never entered into a war with each other in fear of the other sides power. Then one day the humans formed a group called the Chosen. Their goal was to kill all angels and demons to gain power. In the course of 30 years almost all of the demons and angels were killed. It is now modern times and the Chosen have gained all the power required to rule the world, they are exceptional humans with powers and abilities and they have all the positions of power in the most powerful countries now there is only one angel and one demon remaining and this is their story....